{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T10:37:09Z","timestamp":1761561429561},"reference-count":7,"publisher":"Institute of Electrical and Electronics Engineers (IEEE)","issue":"8","license":[{"start":{"date-parts":[[2010,8,1]],"date-time":"2010-08-01T00:00:00Z","timestamp":1280620800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/ieeexplore.ieee.org\/Xplorehelp\/downloads\/license-information\/IEEE.html"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IEEE Trans. Circuits Syst. I"],"published-print":{"date-parts":[[2010,8]]},"DOI":"10.1109\/tcsi.2010.2042996","type":"journal-article","created":{"date-parts":[[2010,4,16]],"date-time":"2010-04-16T12:52:42Z","timestamp":1271422362000},"page":"1983-1992","source":"Crossref","is-referenced-by-count":6,"title":["Available Energy and Passivity of First-Order LLTI One-Ports"],"prefix":"10.1109","volume":"57","author":[{"given":"Antonino M","family":"Sommariva","sequence":"first","affiliation":[]}],"member":"263","reference":[{"key":"ref4","doi-asserted-by":"crossref","DOI":"10.5948\/UPO9781614440017","author":"bliss","year":"1925","journal-title":"Calculus of Variations"},{"key":"ref3","author":"bolza","year":"1904","journal-title":"Lectures on the Calculus of Variations"},{"key":"ref6","author":"fox","year":"1946","journal-title":"An Introduction to the Calculus of Variations"},{"key":"ref5","author":"bliss","year":"1946","journal-title":"Lectures on the Calculus of Variations"},{"key":"ref7","author":"gelfand","year":"1963","journal-title":"Calculus of Variations"},{"key":"ref2","doi-asserted-by":"crossref","DOI":"10.1007\/978-1-4757-2953-5","author":"polderman","year":"1998","journal-title":"Introduction to Mathematical System Theory"},{"key":"ref1","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1109\/TCS.1981.1084907","article-title":"Energy concepts in the state-space theory of nonlinear <ref_formula><tex Notation=\"TeX\">$n$<\/tex><\/ref_formula>-ports: Part I&#x2014;Passivity","volume":"cas 28","author":"wyatt","year":"1981","journal-title":"IEEE Trans Circuits Syst"}],"container-title":["IEEE Transactions on Circuits and Systems I: Regular Papers"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx5\/8919\/5545511\/05447658.pdf?arnumber=5447658","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,10,11]],"date-time":"2021-10-11T01:37:15Z","timestamp":1633916235000},"score":1,"resource":{"primary":{"URL":"http:\/\/ieeexplore.ieee.org\/document\/5447658\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2010,8]]},"references-count":7,"journal-issue":{"issue":"8"},"URL":"https:\/\/doi.org\/10.1109\/tcsi.2010.2042996","relation":{},"ISSN":["1549-8328","1558-0806"],"issn-type":[{"value":"1549-8328","type":"print"},{"value":"1558-0806","type":"electronic"}],"subject":[],"published":{"date-parts":[[2010,8]]}}}