https://catalogue-scientifique.canada.ca/record=1120314~S6*frc
Rechercher Tsytsugina, Viktori︠i︡a Grigorʹevna; Rechercher Risik, Nikolaĭ Sidorovich; Rechercher Lazorenko, Galina Evdokimovna; Rechercher Polikarpov, Gennadiĭ Grigorʹevich
Israel Program for Scientific Translations, 1975, ISBN : 0706515099
Livre