%0 Journal Article %A N. N. Suvorov %A L. V. Sokolova %A V. M. Ryzhkova %A G. G. Dvoryantseva %T Microbiological $20\alpha$-reduction of ketosteroids with the aid of Bacillus megatherium %J Doklady Akademii Nauk %D 1963 %P 1130-1131 %V 152 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_152_5_a26/ %G ru %F DAN_1963_152_5_a26