[Studies on some bicyclic 3,5-dioxo-pyrazolidines].
D001952:Bridged-Ring Compounds; D055598:Chemical Phenomena; D002621:Chemistry; D011720:Pyrazoles
D001952:Bridged-Ring Compounds; D011720:Pyrazoles
Untersuchungen über einige bicyclische 3,5-Dioxo-pyrazolidine.