%0 Journal Article %A A. A. Ponomarev %A I. M. Skvortsov %A L. N. Astakhova %T Certain substitution reactions in the 1,2-dihydropyrrolysine series %J Doklady Akademii Nauk %D 1964 %P 861-864 %V 155 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_155_4_a28/ %G ru %F DAN_1964_155_4_a28