Media type: E-Article Title: The Cis-Trans Isomerization of Conjugated Polyenes and the Occurrence of a Hindered Cis-Isomer of Retinene in the Rhodopsin System Contributor: Pullman, Alberte; Pullman, Bernard imprint: National Academy of Sciences of the United States of America, 1961 Published in: Proceedings of the National Academy of Sciences of the United States of America Language: English ISSN: 0027-8424 Origination: Footnote: Access State: Open Access