{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T00:06:02Z","timestamp":1784246762730,"version":"3.55.0"},"reference-count":73,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2012,1,9]],"date-time":"2012-01-09T00:00:00Z","timestamp":1326067200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A wireless sensor network is a large collection of sensor nodes with limited power supply and constrained computational capability. Due to the restricted communication range and high density of sensor nodes, packet forwarding in sensor networks is usually performed through multi-hop data transmission. Therefore, routing in wireless sensor networks has been considered an important field of research over the past decade. Nowadays, multipath routing approach is widely used in wireless sensor networks to improve network performance through efficient utilization of available network resources. Accordingly, the main aim of this survey is to present the concept of the multipath routing approach and its fundamental challenges, as well as the basic motivations for utilizing this technique in wireless sensor networks. In addition, we present a comprehensive taxonomy on the existing multipath routing protocols, which are especially designed for wireless sensor networks. We highlight the primary motivation behind the development of each protocol category and explain the operation of different protocols in detail, with emphasis on their advantages and disadvantages. Furthermore, this paper compares and summarizes the state-of-the-art multipath routing techniques from the network application point of view. Finally, we identify open issues for further research in the development of multipath routing protocols for wireless sensor networks.<\/jats:p>","DOI":"10.3390\/s120100650","type":"journal-article","created":{"date-parts":[[2012,1,9]],"date-time":"2012-01-09T11:56:17Z","timestamp":1326110177000},"page":"650-685","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":245,"title":["Multipath Routing in Wireless Sensor Networks: Survey and Research Challenges"],"prefix":"10.3390","volume":"12","author":[{"given":"Marjan","family":"Radi","sequence":"first","affiliation":[{"name":"Faculty of Computer Science and Information Systems, Universiti Teknologi Malaysia (UTM), Johor 81310, Malaysia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Behnam","family":"Dezfouli","sequence":"additional","affiliation":[{"name":"Faculty of Computer Science and Information Systems, Universiti Teknologi Malaysia (UTM), Johor 81310, Malaysia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kamalrulnizam Abu","family":"Bakar","sequence":"additional","affiliation":[{"name":"Faculty of Computer Science and Information Systems, Universiti Teknologi Malaysia (UTM), Johor 81310, Malaysia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Malrey","family":"Lee","sequence":"additional","affiliation":[{"name":"Center for Advanced Image and Information Technology, School of Electronics & Information Engineering, ChonBuk National University, 664-14, 1 Ga, DeokJin-Dong, Jeonju, ChonBuk 561-756, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2012,1,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2292","DOI":"10.1016\/j.comnet.2008.04.002","article-title":"Wireless Sensor Network Survey","volume":"52","author":"Yick","year":"2008","journal-title":"Comput. Netw"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"419","DOI":"10.1007\/s11276-005-1766-z","article-title":"A High-Throughput Path Metric for Multi-Hop Wireless Routing","volume":"11","author":"Couto","year":"2005","journal-title":"Wirel. Netw"},{"key":"ref_3","unstructured":"Chen, D., and Varshney, P.K. (2004, January 21\u201324). QoS Support in Wireless Sensor Networks: A Survey. Las Vegas, NV, USA."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"6","DOI":"10.1109\/MWC.2004.1368893","article-title":"Routing Techniques in Wireless Sensor Networks: A Survey","volume":"11","author":"Kamal","year":"2004","journal-title":"IEEE Wirel. Commun"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"325","DOI":"10.1016\/j.adhoc.2003.09.010","article-title":"A Survey on Routing Protocols for Wireless Sensor Networks","volume":"3","author":"Akkaya","year":"2005","journal-title":"Ad Hoc Netw. J"},{"key":"ref_6","unstructured":"Son, D., Krishnamachari, B., and Heidemann, J. (November, January 31). Experimental Study of Concurrent Transmission in Wireless Sensor Networks. Boulder, CO, USA."},{"key":"ref_7","unstructured":"Kang, J., Zhang, Y., and Nath, B. (2004, January 22). End-to-End Channel Capacity Measurement for Congestion Control in Sensor Networks. Boston, MA, USA."},{"key":"ref_8","first-page":"117","article-title":"Performance Optimization Using Multipath Routing in Mobile Ad Hoc and Wireless Sensor Networks","volume":"2","author":"Lou","year":"2006","journal-title":"Combinator. Optim. Commun. Netw"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Woo, A., Tong, T., and Culler, D. (2003, January 5\u20137). Taming the Underlying Challenges of Reliable Multihop Routing in Sensor Networks. Los Angeles, CA, USA.","DOI":"10.1145\/958491.958494"},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Zamalloa, M.Z., and Krishnamachari, B. (2007). An Analysis of Unreliability and Asymmetry in Low-Power Wireless Links. ACM Trans. Sens. Netw, 3.","DOI":"10.1145\/1240226.1240227"},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Alwan, H., and Agarwal, A. (2009, January 18\u201323). A Survey on Fault Tolerant Routing Techniques in Wireless Sensor Networks. Athens, Greece.","DOI":"10.1109\/SENSORCOMM.2009.62"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1125","DOI":"10.1016\/j.jnca.2009.07.002","article-title":"Survey of Multipath Routing Protocols for Mobile Ad Hoc Networks","volume":"32","author":"Tarique","year":"2009","journal-title":"J. Netw. Comput. Appl"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"209","DOI":"10.1007\/978-3-540-24663-3_10","article-title":"Multipath Routing in Mobile Ad Hoc Networks: Issues and Challenges","volume":"2965","author":"Mueller","year":"2004","journal-title":"Lect. Note. Comput. Sci"},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Intanagonwiwat, C., Govindan, R., and Estrin, D. (2000, January 6\u201311). Directed Diffusion: A Scalable and Robust Communication Paradigm for Sensor Networks. Boston, MA, USA.","DOI":"10.1145\/345910.345920"},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Heinzelman, W.R., Kulik, J., and Balakrishnan, H. (1999, January 15\u201320). Adaptive Protocols for Information Dissemination in Wireless Sensor Networks. Seattle, WA, USA.","DOI":"10.1145\/313451.313529"},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Braginsky, D., and Estrin, D. (2002, January 28). Rumor Routing Algorithm for Sensor Networks. Atlanta, GA, USA.","DOI":"10.1145\/570738.570742"},{"key":"ref_17","unstructured":"Ye, F., Chen, A., and Lu, S. (2001, January 15\u201317). A Scalable Solution to Minimum Cost Forwarding in Large Sensor Networks. Scottsdale, AZ, USA."},{"key":"ref_18","unstructured":"Shah, R.C., and Rabaey, J.M. (2002, January 17\u201321). Energy Aware Routing for Low Energy Ad Hoc Sensor Networks. Orlando, FL, USA."},{"key":"ref_19","unstructured":"Manjeshwar, A., and Agrawal, D.P. (2001, January 23\u201327). TEEN: A Routing Protocol for Enhanced Efficiency in Wireless Sensor Networks. San Francisco, CA, USA."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Manjeshwar, A., and Agrawal, D. (2002, January 15\u201319). APTEEN: A Hybrid Protocol for Efficient Routing and Comprehensive Information Retrieval in Wireless Sensor Networks. Lauderdale, FL, USA.","DOI":"10.1109\/IPDPS.2002.1016600"},{"key":"ref_21","unstructured":"Heinzelman, W.R., Chandrakasan, A., and Balakrishnan, H. (2000, January 4\u20137). Energy-Efficient Communication Protocol for Wireless Microsensor Networks. Maui, HI, USA."},{"key":"ref_22","unstructured":"Lindsey, S., and Raghavendra, C. (2002, January 9\u201316). PEGASIS: Power-Efficient Gathering in Sensor Information Systems. Big Sky, MT, USA."},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Ye, H.L., Cheng, J., Lu, S., and Zhang, L. (2002, January 23\u201328). A Two-Tier Data Dissemination Model for Large-scale Wireless Sensor Networks. Atlanta, GA, USA.","DOI":"10.1145\/570645.570664"},{"key":"ref_24","unstructured":"Yu, Y., Govindan, R., and Estrin, D. (2001). Geographical and Energy Aware Routing: A Recursive Data Dissemination Protocol for Wireless Sensor Networks, Citeseer. Technical Report UCLA\/CSD-TR;."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Wang, Z., Bulut, E., and Szymanski, B.K. (2009, January 14\u201318). Energy Efficient Collision Aware Multipath Routing for Wireless Sensor Networks. Dresden, Germany.","DOI":"10.1109\/ICC.2009.5198989"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Xu, Y., and Heidemann, J. (2001, January 16\u201321). Geography-Informed Energy Conservation for Ad Hoc Routing. Rome, Italy.","DOI":"10.1145\/381677.381685"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"16","DOI":"10.1109\/98.878532","article-title":"Protocols for Self-Organization of A Wireless Sensor Network","volume":"7","author":"Sohrabi","year":"2000","journal-title":"IEEE Person. Commun"},{"key":"ref_28","unstructured":"Tian, H., Stankovic, J.A., Chenyang, L., and Abdelzaher, T. (2003, January 19\u201322). SPEED: A Stateless Protocol for Real-Time Communication in Sensor Networks. Providence, RI, USA."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"738","DOI":"10.1109\/TMC.2006.79","article-title":"MMSPEED: Multipath Multi-SPEED Protocol for QoS Guarantee of Reliability and Timeliness in Wireless Sensor Networks","volume":"5","author":"Felemban","year":"2006","journal-title":"IEEE Trans. Mobile Comput"},{"key":"ref_30","unstructured":"Akkaya, K., and Younis, M.F. (2003, January 19\u201322). An Energy-Aware QoS Routing Protocol for Wireless Sensor Networks. Providence, RI, USA."},{"key":"ref_31","unstructured":"He, L. (August, January 30). Delay-Minimum Energy-Aware Routing Protocol (DERP) for Wireless Sensor Networks. Qingdao, China."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1145\/509506.509514","article-title":"Highly-Resilient, Energy-Efficient Multipath Routing in Wireless Sensor Networks","volume":"5","author":"Ganesan","year":"2001","journal-title":"Mobile Comput. Commun. Rev"},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Lou, W. (2005, January 7\u201310). An Efficient N-to-1 Multipath Routing Protocol in Wireless Sensor Networks. Washington, DC, USA.","DOI":"10.1109\/VTCF.2006.505"},{"key":"ref_34","unstructured":"Fonseca, R., Gnawali, O., Jamieson, K., and Levis, P. (2007, January 14). Four-Bit Wireless Link Estimation. Atlanta, GA, USA."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"1172","DOI":"10.1109\/TNET.2008.2008001","article-title":"On Accurate and Asymmetry-Aware Measurement of Link Quality in Wireless Mesh Networks","volume":"17","author":"Kim","year":"2009","journal-title":"IEEE\/ACM Trans. Netw"},{"key":"ref_36","doi-asserted-by":"crossref","unstructured":"He, T., Ren, F., Lin, C., and Das, S. (2008, January 16\u201320). Alleviating Congestion Using Traffic-Aware Dynamic Routing in Wireless Sensor Networks. San Francisco, CA, USA.","DOI":"10.1109\/SAHCN.2008.37"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"786","DOI":"10.1109\/JSAC.2007.070514","article-title":"Upstream Congestion Control in Wireless Sensor Networks Through Cross-Layer Optimization","volume":"25","author":"Wang","year":"2007","journal-title":"IEEE J. Select. Areas Commun"},{"key":"ref_38","unstructured":"Gallardo, J.R., Gonzalez, A., Villasenor-Gonzalez, L., and Sanchez, J. (June, January 30). Multipath Routing Using Generalized Load Sharing for Wireless Sensor Networks. Montreal, QC, Canada."},{"key":"ref_39","doi-asserted-by":"crossref","unstructured":"Popa, L., Raiciu, C., Stoica, I., and Rosenblum, D. (2006, January 12\u201315). Reducing Congestion Effects in Wireless Networks by Multipath Routing. Santa Barbara, CA, USA.","DOI":"10.1109\/ICNP.2006.320202"},{"key":"ref_40","doi-asserted-by":"crossref","unstructured":"Key, P., Massoulie, L., and Towsley, D. (2007, January 6\u201312). Path Selection and Multipath Congestion Control. Anchorage, AK, USA.","DOI":"10.1109\/INFCOM.2007.25"},{"key":"ref_41","unstructured":"Jones, E., Karsten, M., and Ward, P.A.S. (2005, January 22\u201324). Multipath Load Balancing in Multi-Hop Wireless Networks. Montreal, QC, Canada."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"471","DOI":"10.1007\/s11276-005-1769-9","article-title":"Impact of Interference on Multi-Hop Wireless Network Performance","volume":"11","author":"Jain","year":"2005","journal-title":"Wirel. Netw"},{"key":"ref_43","unstructured":"Pearlman, M.R., Haas, Z.J., Sholander, P., and Tabrizi, S.S. (2000, January 11). On the Impact of Alternate Path Routing for Load Balancing in Mobile Ad Hoc Networks. Boston, MA, USA."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1109\/TCSVT.2008.2009242","article-title":"Interference Aware Multipath Selection for Video Streaming in Wireless Ad Hoc Networks","volume":"19","author":"Wei","year":"2009","journal-title":"IEEE Trans. Circ. Syst. Video Tech"},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"1124","DOI":"10.1109\/TMC.2008.24","article-title":"Interference-Minimized Multipath Routing with Congestion Control in Wireless Sensor Network for High-Rate Streaming","volume":"7","author":"Teo","year":"2008","journal-title":"IEEE Trans. Mobile Comput. Mobile Comput"},{"key":"ref_46","doi-asserted-by":"crossref","unstructured":"Fu, B., Li, R., Xiao, X., Liu, C., and Yang, Q. (2009, January 18\u201320). Non-Interfering Multipath Geographic Routing for Wireless Multimedia Sensor Networks. Wuhan, China.","DOI":"10.1109\/MINES.2009.139"},{"key":"ref_47","doi-asserted-by":"crossref","unstructured":"Roy, S., Bandyopadhyay, S, Ueda, T., and Hasuike, K. (2002, January 28\u201331). Multipath Routing in Ad Hoc Wireless Networks with Omni Directional and Directional Antenna: A Comparative Study. Calcutta, India.","DOI":"10.1007\/3-540-36385-8_19"},{"key":"ref_48","unstructured":"Tarn, W.H., and Tseng, Y.C. (2007, January 6\u201312). Joint Multi-Channel Link Layer and Multi-Path Routing Design for Wireless Mesh Networks. Anchorage, AK, USA."},{"key":"ref_49","unstructured":"Yan, B., and Gharavi, H. (2006, January 24\u201326). Multi-Path Multi-Channel Routing Protocol. Cambridge, MA, USA."},{"key":"ref_50","unstructured":"Yang, Y., Wang, J., and Kravets, R. (2005). Interference-Aware Load Balancing for Multihop Wireless Networks, Department of Computer Science, University of Illinois at Urbana-Champaign. Technical Report UIUCDCS-R-2005-2526;."},{"key":"ref_51","doi-asserted-by":"crossref","unstructured":"Subramanian, A.P., Buddhikot, M.M., and Miller, S. (2006, January 25). Interference Aware Routing in Multi-Radio Wireless Mesh Networks. Reston, VA, USA.","DOI":"10.1109\/WIMESH.2006.288620"},{"key":"ref_52","unstructured":"Wu, K., and Harms, J. (2001, January 15\u201318). Performance Study of a Multipath Routing Method for Wireless Mobile Ad Hoc Networks. Cincinnati, OH, USA."},{"key":"ref_53","unstructured":"Parissidis, G., Karaliopoulos, M., Baumann, R., and Syyropoulos, T. (2009). Guide to Wireless Mesh Networks, Springer."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"1984","DOI":"10.1109\/JSAC.2006.881637","article-title":"Quality-Aware Routing Metrics for Time-Varying Wireless Mesh Networks","volume":"24","author":"Koksal","year":"2006","journal-title":"IEEE J. Sel. Area. Commun"},{"key":"ref_55","unstructured":"Hassanein, H., and Luo, J. (2006, January 24\u201328). Reliable Energy Aware Routing in Wireless Sensor Networks. Los Alamitos, CA, USA."},{"key":"ref_56","first-page":"110","article-title":"Efficient Multi-Path protocol for Wireless Sensor Networks","volume":"2","author":"Li","year":"2010","journal-title":"Int. J. Wirel. Mobile Netw"},{"key":"ref_57","unstructured":"Deb, B., Bhatnagar, S., and Nath, B. (2003, January 20\u201324). ReInForM: Reliable Information Forwarding Using Multiple Paths in Sensor Networks. Bonn, Germany."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"747","DOI":"10.1002\/dac.843","article-title":"An Energy-Efficient Multipath Routing Protocol for Wireless Sensor Networks","volume":"20","author":"Ming","year":"2007","journal-title":"Int. J. Commun. Syst"},{"key":"ref_59","doi-asserted-by":"crossref","unstructured":"Radi, M., Dezfouli, B., Razak, S.A., and Bakar, K.A. (2010, January 18\u201325). LIEMRO: A Low-Interference Energy-Efficient Multipath Routing Protocol for Improving QoS in Event-Based Wireless Sensor Networks. Venice, Italy.","DOI":"10.1109\/SENSORCOMM.2010.89"},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"465","DOI":"10.1007\/s11276-006-0731-9","article-title":"Multiconstrained QoS Multipath Routing in Wireless Sensor Networks","volume":"14","author":"Huang","year":"2007","journal-title":"J. Wirel. Netw"},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"1320","DOI":"10.1109\/TVT.2006.877707","article-title":"H-SPREAD: A Hybrid Multipath Scheme for Secure and Reliable Data Collection in Wireless Sensor Networks","volume":"55","author":"Lou","year":"2006","journal-title":"IEEE Trans. Veh Tech"},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"126","DOI":"10.5121\/ijcnc.2010.2411","article-title":"A Cross-Layer Approach for Minimizing Interference and Latency of Medium Access in Wireless Sensor Networks","volume":"2","author":"Dezfouli","year":"2010","journal-title":"Int. J. Comput. Netw. Commun"},{"key":"ref_63","doi-asserted-by":"crossref","unstructured":"Dezfouli, B., Radi, M., Nematbakhsh, M.A., and Razak, S.A. (2011, January 22\u201325). A Medium Access Control Protocol with Adaptive Parent Selection Mechanism for Large-Scale Sensor Networks. Singapore.","DOI":"10.1109\/WAINA.2011.124"},{"key":"ref_64","unstructured":"Bagula, A., and Mazandu, K. (2008, January 23\u201325). Energy Constrained Multipath Routing in Wireless Sensor Networks. Oslo, Norway."},{"key":"ref_65","unstructured":"Li, W., and Cassandras, C.G. (2005, January 13\u201317). A Minimum-Power Wireless Sensor Network Self-Deployment Scheme. New Orleans, LA, USA."},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"849","DOI":"10.1016\/j.jpdc.2010.02.010","article-title":"Energy Efficient and QoS Based Routing Protocol for Wireless Sensor Networks","volume":"70","author":"Yahya","year":"2010","journal-title":"J. Parall. Distrib. Comput"},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"747","DOI":"10.1002\/dac.843","article-title":"An Energy-Efficient Multipath Routing Protocol for Wireless Sensor Networks","volume":"20","author":"Lu","year":"2007","journal-title":"Int. J. Commun. Syst"},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"475","DOI":"10.1016\/S1007-0214(11)70067-0","article-title":"Interference-Aware Multipath Routing Protocol for QoS Improvement in Event-Driven Wireless Sensor Networks","volume":"16","author":"Radi","year":"2011","journal-title":"Tsinghua Sci. Tech"},{"key":"ref_69","doi-asserted-by":"crossref","unstructured":"Hurni, P., and Braun, T. (2008, January 10\u201313). Energy-Efficient Multi-Path Routing in Wireless Sensor Networks. Sophia Antipolis, France.","DOI":"10.1007\/978-3-540-85209-4_6"},{"key":"ref_70","unstructured":"Marina, M.K., and Das, S.R. (2001, January 11\u201314). On-Demand Multipath Distance Vector Routing in Ad Hoc Networks. Riverside, CA, USA."},{"key":"ref_71","doi-asserted-by":"crossref","unstructured":"Maimour, M. (2008, January 27\u201331). Maximally Radio-Disjoint Multipath Routing for Wireless Multimedia Sensor Networks. Vancouver, BC, Canada.","DOI":"10.1145\/1454573.1454579"},{"key":"ref_72","unstructured":"Baccour, N., Aa, A.K., Mottola, L., Youssef, H., Boano, C.A., and Ario, M. Radio Link Quality Estimation in Wireless Sensor Networks: A Survey. ACM Trans. Sens. Netw, submitted."},{"key":"ref_73","doi-asserted-by":"crossref","unstructured":"Dezfouli, B., Radi, M., and Nematbakhsh, M.A. (2009, January 27\u201329). Cross-Layer Interference Avoidance MAC Protocol for Dense Wireless Sensor Networks. Chennai, India.","DOI":"10.1109\/NetCoM.2009.44"}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/12\/1\/650\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T21:48:25Z","timestamp":1760219305000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/12\/1\/650"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012,1,9]]},"references-count":73,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2012,1]]}},"alternative-id":["s120100650"],"URL":"https:\/\/doi.org\/10.3390\/s120100650","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012,1,9]]}}}