{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,1]],"date-time":"2026-02-01T17:55:53Z","timestamp":1769968553028,"version":"3.49.0"},"reference-count":7,"publisher":"Elsevier BV","issue":"4","license":[{"start":{"date-parts":[[1974,1,1]],"date-time":"1974-01-01T00:00:00Z","timestamp":126230400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Automatica"],"published-print":{"date-parts":[[1974]]},"DOI":"10.1016\/0005-1098(74)90066-1","type":"journal-article","created":{"date-parts":[[2003,3,14]],"date-time":"2003-03-14T13:27:27Z","timestamp":1047648447000},"page":"393-403","source":"Crossref","is-referenced-by-count":26,"title":["Automatic hover control of an unmanned tethered rotorplatform"],"prefix":"10.1016","volume":"10","author":[{"given":"G.","family":"Schmidt","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Swik","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/0005-1098(74)90066-1_BIB1","doi-asserted-by":"crossref","first-page":"41","DOI":"10.4050\/JAHS.7.41","article-title":"The stability and control of tethered helicopters","volume":"7","author":"Kaufmann","year":"1962","journal-title":"J. am. Helicopter Soc."},{"key":"10.1016\/0005-1098(74)90066-1_BIB2","unstructured":"G. Schmidt, R. Swik, W. Dusold und \u00fc: Einsatz eines Hybridrechners bei der Entwicklung eines unbemannten gefesselten Hubschraubers, 6th AICA Congress Proceedings, Presses Acad\u00e9miques, Brussels, pp. 280\u2013289."},{"key":"10.1016\/0005-1098(74)90066-1_BIB3","unstructured":"P. R. Payne: Helicopter Dynamics and Aerodynamics. Sir Isaac Pitman, London."},{"key":"10.1016\/0005-1098(74)90066-1_BIB4","series-title":"Rechentechn. Aufbereitung und Programmierung des Rotorplattform-Modells und Aufbau einer Echtzeitsimulation Internal Dornier Report","author":"Ernsberger","year":"1970"},{"key":"10.1016\/0005-1098(74)90066-1_BIB5","series-title":"Systeme mit verteilten Parametern","author":"Gilles","year":"1973"},{"key":"10.1016\/0005-1098(74)90066-1_BIB6","doi-asserted-by":"crossref","first-page":"413","DOI":"10.1016\/0005-1098(72)90100-8","article-title":"On nonnegative-negative definite solutions to matrix quadratic equations","volume":"8","author":"Ku\u00e7era","year":"1972","journal-title":"Automatica"},{"key":"10.1016\/0005-1098(74)90066-1_BIB7","series-title":"Avionics Navigation Systems","author":"Kayton","year":"1969"}],"container-title":["Automatica"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0005109874900661?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0005109874900661?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,3,26]],"date-time":"2019-03-26T22:20:05Z","timestamp":1553638805000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/0005109874900661"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1974]]},"references-count":7,"journal-issue":{"issue":"4","published-print":{"date-parts":[[1974]]}},"alternative-id":["0005109874900661"],"URL":"https:\/\/doi.org\/10.1016\/0005-1098(74)90066-1","relation":{},"ISSN":["0005-1098"],"issn-type":[{"value":"0005-1098","type":"print"}],"subject":[],"published":{"date-parts":[[1974]]}}}