@article{DAN_1964_155_4_a28,
     author = {A. A. Ponomarev and I. M. Skvortsov and L. N. Astakhova},
     title = {Certain substitution reactions in the 1,2-dihydropyrrolysine series},
     journal = {Doklady Akademii Nauk},
     pages = {861--864},
     publisher = {mathdoc},
     volume = {155},
     number = {4},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_155_4_a28/}
}