{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T14:06:34Z","timestamp":1774620394719,"version":"3.50.1"},"reference-count":23,"publisher":"Elsevier BV","issue":"2","license":[{"start":{"date-parts":[[1977,3,1]],"date-time":"1977-03-01T00:00:00Z","timestamp":226022400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[1977,3,1]],"date-time":"1977-03-01T00:00:00Z","timestamp":226022400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"funder":[{"DOI":"10.13039\/501100000046","name":"National Research Council Canada","doi-asserted-by":"publisher","award":["A4396"],"award-info":[{"award-number":["A4396"]}],"id":[{"id":"10.13039\/501100000046","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Automatica"],"published-print":{"date-parts":[[1977,3]]},"DOI":"10.1016\/0005-1098(77)90036-x","type":"journal-article","created":{"date-parts":[[2003,3,14]],"date-time":"2003-03-14T08:27:27Z","timestamp":1047630447000},"page":"109-123","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":85,"title":["Connectability and structural controllability of composite systems"],"prefix":"10.1016","volume":"13","author":[{"given":"E.J.","family":"Davison","sequence":"first","affiliation":[]}],"member":"78","reference":[{"key":"10.1016\/0005-1098(77)90036-X_BIB1","author":"Rosenbrock","year":"1970","journal-title":"State-space and Multivariable Theory"},{"key":"10.1016\/0005-1098(77)90036-X_BIB2","first-page":"128","article-title":"Controllability and observability in multivariable control systems","volume":"1","author":"Gilbert","year":"1963","journal-title":"SIAM J. Control"},{"key":"10.1016\/0005-1098(77)90036-X_BIB3","doi-asserted-by":"crossref","first-page":"402","DOI":"10.1109\/TAC.1967.1098658","article-title":"Controllability and observability of composite systems","volume":"AC-12","author":"Chen","year":"1967","journal-title":"IEEE Trans. Aut. Control"},{"issue":"1","key":"10.1016\/0005-1098(77)90036-X_BIB4","first-page":"44","article-title":"Controllability and observability of series connections of systems","volume":"3","author":"Grasselli","year":"1972","journal-title":"Ricerche di Automatica"},{"key":"10.1016\/0005-1098(77)90036-X_BIB5","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1109\/TAC.1973.1100201","article-title":"On the controllability and observability of composite systems","volume":"AC-18","author":"Wang","year":"1973","journal-title":"IEEE Trans. Aut. Control"},{"issue":"2","key":"10.1016\/0005-1098(77)90036-X_BIB6","doi-asserted-by":"crossref","first-page":"209","DOI":"10.1016\/0005-1098(74)90026-0","article-title":"Composite system controllability and observability","volume":"10","author":"Wolovich","year":"1974","journal-title":"Automatica"},{"issue":"1","key":"10.1016\/0005-1098(77)90036-X_BIB7","doi-asserted-by":"crossref","first-page":"120","DOI":"10.1109\/TAC.1975.1100854","article-title":"Input regularity of cascaded systems","volume":"AC-20","author":"Hautus","year":"1975","journal-title":"IEEE Trans. Aut. Control"},{"issue":"1","key":"10.1016\/0005-1098(77)90036-X_BIB8","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1109\/TAC.1975.1100857","article-title":"New results on the controllability and observability of general composite systems","volume":"AC-20","author":"Davison","year":"1975","journal-title":"IEEE Trans. Aut. Control"},{"key":"10.1016\/0005-1098(77)90036-X_BIB9","first-page":"201","article-title":"Structural controllability","volume":"3","author":"Lin","year":"1974","journal-title":"IEEE Trans. Aut. Control"},{"key":"10.1016\/0005-1098(77)90036-X_BIB10","article-title":"Structural controllability of multi-input linear systems","author":"Shields","year":"1975"},{"key":"10.1016\/0005-1098(77)90036-X_BIB11","article-title":"Structurally controllable and structurally canonical systems","author":"Corfmat","year":"1975"},{"key":"10.1016\/0005-1098(77)90036-X_BIB12","article-title":"Characterization of structural controllability","author":"Glover","year":"1975"},{"key":"10.1016\/0005-1098(77)90036-X_BIB13","doi-asserted-by":"crossref","first-page":"643","DOI":"10.1016\/0005-1098(74)90085-5","article-title":"Properties and calculation of transmission zeros of linear multivariable systems","volume":"10","author":"Davison","year":"1974","journal-title":"Automatica"},{"issue":"1","key":"10.1016\/0005-1098(77)90036-X_BIB14","doi-asserted-by":"crossref","first-page":"24","DOI":"10.1109\/TAC.1973.1100219","article-title":"Properties of linear multivariable systems subject to arbitrary output and state feedback","volume":"AC-18","author":"Davison","year":"1973","journal-title":"IEEE Trans. Aut. Control"},{"key":"10.1016\/0005-1098(77)90036-X_BIB15","first-page":"304","author":"Kaufwan","year":"1967"},{"key":"10.1016\/0005-1098(77)90036-X_BIB16","first-page":"160","author":"Berge","year":"1962"},{"key":"10.1016\/0005-1098(77)90036-X_BIB17","first-page":"25","author":"Harary","year":"1973"},{"key":"10.1016\/0005-1098(77)90036-X_BIB18","first-page":"206","author":"Deo","year":"1974"},{"key":"10.1016\/0005-1098(77)90036-X_BIB19","year":"1973"},{"key":"10.1016\/0005-1098(77)90036-X_BIB20","author":"Mesarovic","year":"1970"},{"key":"10.1016\/0005-1098(77)90036-X_BIB21","series-title":"Trends in General Systems Theory","first-page":"145","article-title":"The hierarchical basis for general living systems","author":"Milsum","year":"1972"},{"key":"10.1016\/0005-1098(77)90036-X_BIB22","doi-asserted-by":"crossref","first-page":"473","DOI":"10.1109\/TAC.1973.1100362","article-title":"On the stabilization of decentralized control systems","volume":"AC-18","author":"Wang","year":"1973","journal-title":"IEEE Trans. Aut. Control"},{"key":"10.1016\/0005-1098(77)90036-X_BIB23","series-title":"Proc. 6th IFAC Congress","article-title":"Decentralized control of linear multivariable systems","author":"Cormat","year":"1975"}],"container-title":["Automatica"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:000510987790036X?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:000510987790036X?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,3]],"date-time":"2025-09-03T14:19:55Z","timestamp":1756909195000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/000510987790036X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1977,3]]},"references-count":23,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1977,3]]}},"alternative-id":["000510987790036X"],"URL":"https:\/\/doi.org\/10.1016\/0005-1098(77)90036-x","relation":{},"ISSN":["0005-1098"],"issn-type":[{"value":"0005-1098","type":"print"}],"subject":[],"published":{"date-parts":[[1977,3]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Connectability and structural controllability of composite systems","name":"articletitle","label":"Article Title"},{"value":"Automatica","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/0005-1098(77)90036-X","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"converted-article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 1977 Published by Elsevier Ltd.","name":"copyright","label":"Copyright"}]}}