Isolation and absolute configuration of 'BETA', 'BETA' - carotene diepoxide - Almeida-Muradian, Ligia Bicudo de; Penteado, Marilene de Vuono Camargo; Britton, G; Vebelhart, P; Acemoglu, M; Eugster, C. H (Helvetica Chimica Acta, 1988)