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An application to singularly perturbed control systems is displayed.<\/jats:p>","DOI":"10.1137\/090772617","type":"journal-article","created":{"date-parts":[[2010,10,14]],"date-time":"2010-10-14T18:12:28Z","timestamp":1287079948000},"page":"4963-4986","source":"Crossref","is-referenced-by-count":10,"title":["Periodic Optimization Suffices for Infinite Horizon Planar Optimal Control"],"prefix":"10.1137","volume":"48","author":[{"given":"Zvi","family":"Artstein","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ido","family":"Bright","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"351","published-online":{"date-parts":[[2010,10,14]]},"reference":[{"key":"R1","first-page":"623","volume":"31","author":"Artstein Z.","year":"2002","journal-title":"Control and Cybernet.","ISSN":"https:\/\/id.crossref.org\/issn\/0324-8569","issn-type":"print"},{"key":"R2","doi-asserted-by":"crossref","unstructured":"Z. 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