Utkina, N.K., and Maksimov, O.B. 1978. Quinoid pigments of echinodermata. VI. New anthraquinone from the starfish Echinaster echinophorus. Chem. Nat. Comp. 14:561-562. |
|
Utkina, N.K., and Maksimov, O.B. 1977. Anthraquinone pigments of the seastar Echinaster echinophorus. IV. Chem. Nat. Comp. 13:528-531. |
|