%0 Journal Article %A L. Kh. Freidlin %A B. D. Polkovnikov %T Sequence in the hydrogenation of cyclopentadiene double bonds on Pd- and Pt-black %J Doklady Akademii Nauk %D 1957 %P 83-85 %V 112 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_112_1_a21/ %G ru %F DAN_1957_112_1_a21