Properties of the lipo proteins of the intra cellular membranes of the blue green alga anacystis nidulans Oparin, A.I.; Bezinger, E.N.; Molchanov, M.I.; Zarobyan, T.Y.; Kotovskaya, A.P. Doklady. Biochemistry 193(1-6): 195-197 1970 0012-4958 https://eurekamag.com/research/027/224/027224069.php