References |
Ref.369: Buchecker, Richard; Eugster, Conrad Hans; Litchfield, Carter, Helvetica Chimica Acta, Volume60, Issue8, Pages2780-8, 1977, ISSN:0018-019X, "Carotenoids from marine sponges (Porifera): isolation and structure of the seven main carotenoids from Agelas schmidtii".
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