{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,20]],"date-time":"2026-04-20T12:04:00Z","timestamp":1776686640835,"version":"3.51.2"},"reference-count":31,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T00:00:00Z","timestamp":1774396800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100021856","name":"Ministero dell'Universit\u00e0 e della Ricerca","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100021856","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100024370","name":"Ministero dell'Istruzione dell'Universit\u00e0 e della Ricerca","doi-asserted-by":"publisher","award":["20229ZWC97"],"award-info":[{"award-number":["20229ZWC97"]}],"id":[{"id":"10.13039\/501100024370","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Computers & Operations Research"],"published-print":{"date-parts":[[2026,8]]},"DOI":"10.1016\/j.cor.2026.107477","type":"journal-article","created":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T18:08:04Z","timestamp":1774462084000},"page":"107477","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":0,"special_numbering":"C","title":["A MILP and a genetic algorithm for the flying sidekick TSP with variable drone speeds"],"prefix":"10.1016","volume":"192","author":[{"given":"Federico","family":"Michelotto","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2987-1593","authenticated-orcid":false,"given":"Roberto","family":"Roberti","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"issue":"4","key":"10.1016\/j.cor.2026.107477_b1","doi-asserted-by":"crossref","first-page":"965","DOI":"10.1287\/trsc.2017.0791","article-title":"Optimization approaches for the traveling salesman problem with drone","volume":"52","author":"Agatz","year":"2018","journal-title":"Transp. Sci."},{"key":"10.1016\/j.cor.2026.107477_b2","series-title":"The race for last mile drones","author":"Banker","year":"2022"},{"issue":"4","key":"10.1016\/j.cor.2026.107477_b3","doi-asserted-by":"crossref","first-page":"1064","DOI":"10.1287\/ijoc.2022.0390","article-title":"Decremental state-space relaxations for the basic traveling salesman problem with a drone","volume":"36","author":"Blufstein","year":"2024","journal-title":"INFORMS J. Comput."},{"issue":"3","key":"10.1016\/j.cor.2026.107477_b4","doi-asserted-by":"crossref","first-page":"254","DOI":"10.1002\/net.22172","article-title":"A new MILP formulation for the flying sidekick traveling salesman problem","volume":"82","author":"Boccia","year":"2023","journal-title":"Networks"},{"key":"10.1016\/j.cor.2026.107477_b5","doi-asserted-by":"crossref","DOI":"10.1016\/j.trc.2020.102913","article-title":"A column-and-row generation approach for the flying sidekick travelling salesman problem","volume":"124","author":"Boccia","year":"2021","journal-title":"Transp. Res. Part C Emerg. Technol."},{"issue":"4","key":"10.1016\/j.cor.2026.107477_b6","doi-asserted-by":"crossref","first-page":"528","DOI":"10.1002\/net.21864","article-title":"Dynamic programming approaches for the traveling salesman problem with drone","volume":"72","author":"Bouman","year":"2018","journal-title":"Networks"},{"key":"10.1016\/j.cor.2026.107477_b7","doi-asserted-by":"crossref","DOI":"10.1016\/j.cie.2023.109003","article-title":"The drone-assisted variable speed asymmetric traveling salesman problem","volume":"176","author":"Campuzano","year":"2023","journal-title":"Comput. Ind. Eng."},{"key":"10.1016\/j.cor.2026.107477_b8","doi-asserted-by":"crossref","first-page":"8","DOI":"10.1007\/s10732-024-09543-0","article-title":"Transforming last mile delivery with heterogeneous assistants: drones and delivery robots","volume":"31","author":"Chen","year":"2025","journal-title":"J. Heuristics"},{"issue":"1","key":"10.1016\/j.cor.2026.107477_b9","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1111\/itor.12671","article-title":"A variable neighborhood search for flying sidekick traveling salesman problem","volume":"27","author":"de Freitas","year":"2020","journal-title":"Int. Trans. Oper. Res."},{"key":"10.1016\/j.cor.2026.107477_b10","doi-asserted-by":"crossref","DOI":"10.1016\/j.omega.2021.102493","article-title":"Algorithms based on branch and bound for the flying sidekick traveling salesman problem","volume":"104","author":"Dell\u2019Amico","year":"2021","journal-title":"Omega"},{"issue":"3","key":"10.1016\/j.cor.2026.107477_b11","doi-asserted-by":"crossref","first-page":"303","DOI":"10.1002\/net.22022","article-title":"Modeling the flying sidekick traveling salesman problem with multiple drones","volume":"78","author":"Dell\u2019Amico","year":"2021","journal-title":"Networks"},{"issue":"3","key":"10.1016\/j.cor.2026.107477_b12","doi-asserted-by":"crossref","first-page":"1360","DOI":"10.1111\/itor.13030","article-title":"Exact models for the flying sidekick traveling salesman problem","volume":"29","author":"Dell\u2019Amico","year":"2022","journal-title":"Int. Trans. Oper. Res."},{"key":"10.1016\/j.cor.2026.107477_b13","doi-asserted-by":"crossref","DOI":"10.1016\/j.cor.2023.106319","article-title":"A variable neighborhood search for parcel delivery by vehicle with drone cycles","volume":"159","author":"El-Adle","year":"2023","journal-title":"Comput. Oper. Res."},{"key":"10.1016\/j.cor.2026.107477_b14","doi-asserted-by":"crossref","first-page":"249","DOI":"10.1016\/j.trc.2018.04.009","article-title":"A decomposition-based iterative optimization algorithm for traveling salesman problem with drone","volume":"91","author":"Es Yurek","year":"2018","journal-title":"Transp. Res. Part C Emerg. Technol."},{"issue":"1","key":"10.1016\/j.cor.2026.107477_b15","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1109\/72.265956","article-title":"An introduction to simulated evolutionary optimization","volume":"5","author":"Fogel","year":"1994","journal-title":"IEEE Trans. Neural Netw."},{"key":"10.1016\/j.cor.2026.107477_b16","doi-asserted-by":"crossref","first-page":"597","DOI":"10.1016\/j.trc.2017.11.015","article-title":"On the min-cost traveling salesman problem with drone","volume":"86","author":"Ha","year":"2018","journal-title":"Transp. Res. Part C Emerg. Technol."},{"issue":"2","key":"10.1016\/j.cor.2026.107477_b17","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1007\/s10732-019-09431-y","article-title":"A hybrid genetic algorithm for the traveling salesman problem with drone","volume":"26","author":"Ha","year":"2020","journal-title":"J. Heuristics"},{"key":"10.1016\/j.cor.2026.107477_b18","series-title":"The NLopt nonlinear-optimization package","author":"Johnson","year":"2007"},{"issue":"2","key":"10.1016\/j.cor.2026.107477_b19","doi-asserted-by":"crossref","first-page":"343","DOI":"10.1007\/s40305-021-00383-4","article-title":"A survey of truck\u2013drone routing problem: Literature review and research prospects","volume":"10","author":"Liang","year":"2022","journal-title":"J. Oper. Res. Soc. China"},{"key":"10.1016\/j.cor.2026.107477_b20","doi-asserted-by":"crossref","unstructured":"Liu, Z., Sengupta, R., Kurzhanskiy, A., 2017. A power consumption model for multi-rotor small unmanned aircraft systems. In: 2017 International Conference on Unmanned Aircraft Systems. ICUAS, pp. 310\u2013315.","DOI":"10.1109\/ICUAS.2017.7991310"},{"key":"10.1016\/j.cor.2026.107477_b21","doi-asserted-by":"crossref","DOI":"10.1016\/j.trc.2020.102762","article-title":"Drone-aided routing: A literature review","volume":"120","author":"Macrina","year":"2020","journal-title":"Transp. Res. Part C Emerg. Technol."},{"key":"10.1016\/j.cor.2026.107477_b22","doi-asserted-by":"crossref","first-page":"86","DOI":"10.1016\/j.trc.2015.03.005","article-title":"The flying sidekick traveling salesman problem: Optimization of drone-assisted parcel delivery","volume":"54","author":"Murray","year":"2015","journal-title":"Transp. Res. Part C Emerg. Technol."},{"issue":"2","key":"10.1016\/j.cor.2026.107477_b23","doi-asserted-by":"crossref","first-page":"335","DOI":"10.1287\/ijoc.2018.0826","article-title":"A branch-and-bound approach to the traveling salesman problem with a drone","volume":"31","author":"Poikonen","year":"2019","journal-title":"INFORMS J. Comput."},{"key":"10.1016\/j.cor.2026.107477_b24","doi-asserted-by":"crossref","DOI":"10.1016\/j.trc.2020.102813","article-title":"The multiple flying sidekicks traveling salesman problem with variable drone speeds","volume":"120","author":"Raj","year":"2020","journal-title":"Transp. Res. Part C Emerg. Technol."},{"issue":"2","key":"10.1016\/j.cor.2026.107477_b25","doi-asserted-by":"crossref","first-page":"315","DOI":"10.1287\/trsc.2020.1017","article-title":"Exact methods for the traveling salesman problem with drone","volume":"55","author":"Roberti","year":"2021","journal-title":"Transp. Sci."},{"issue":"2","key":"10.1016\/j.cor.2026.107477_b26","doi-asserted-by":"crossref","first-page":"164","DOI":"10.1002\/net.21958","article-title":"A branch-and-cut approach and alternative formulations for the traveling salesman problem with drone","volume":"76","author":"Schermer","year":"2020","journal-title":"Networks"},{"issue":"409","key":"10.1016\/j.cor.2026.107477_b27","article-title":"Energy use and life cycle greenhouse gas emissions of drones for commercial package delivery","volume":"9","author":"Stolaroff","year":"2018","journal-title":"Nat. Commun."},{"key":"10.1016\/j.cor.2026.107477_b28","doi-asserted-by":"crossref","DOI":"10.1016\/j.cor.2022.106112","article-title":"The vehicle routing problem with drones and drone speed selection","volume":"152","author":"Tamke","year":"2023","journal-title":"Comput. Oper. Res."},{"key":"10.1016\/j.cor.2026.107477_b29","doi-asserted-by":"crossref","DOI":"10.1016\/j.cor.2020.105127","article-title":"An exact solution method for the TSP with drone based on decomposition","volume":"127","author":"V\u00e1squez","year":"2021","journal-title":"Comput. Oper. Res."},{"issue":"3","key":"10.1016\/j.cor.2026.107477_b30","doi-asserted-by":"crossref","first-page":"611","DOI":"10.1287\/opre.1120.1048","article-title":"A hybrid genetic algorithm for multidepot and periodic vehicle routing problems","volume":"60","author":"Vidal","year":"2012","journal-title":"Oper. Res."},{"key":"10.1016\/j.cor.2026.107477_b31","doi-asserted-by":"crossref","DOI":"10.1016\/j.trd.2020.102668","article-title":"Energy consumption models for delivery drones: A comparison and assessment","volume":"90","author":"Zhang","year":"2021","journal-title":"Transp. Res. D Transp. Env."}],"container-title":["Computers & Operations Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S030505482600095X?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S030505482600095X?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,4,20]],"date-time":"2026-04-20T11:22:05Z","timestamp":1776684125000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S030505482600095X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8]]},"references-count":31,"alternative-id":["S030505482600095X"],"URL":"https:\/\/doi.org\/10.1016\/j.cor.2026.107477","relation":{},"ISSN":["0305-0548"],"issn-type":[{"value":"0305-0548","type":"print"}],"subject":[],"published":{"date-parts":[[2026,8]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"A MILP and a genetic algorithm for the flying sidekick TSP with variable drone speeds","name":"articletitle","label":"Article Title"},{"value":"Computers & Operations Research","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.cor.2026.107477","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2026 The Authors. Published by Elsevier Ltd.","name":"copyright","label":"Copyright"}],"article-number":"107477"}}