I.  Schapiro. 2016. ?The Origin Of Bond Selectivity And Excited-State Reactivity In Retinal Analogues?. Journal Of Physical Chemistry A, 120, 19, Pp. 3353 - 3365. https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971324278&partnerID=40&md5=bb7c1e1c142d9feb1ab7be20a2ff8d4d.