Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AL_1970_9_4_a4, author = {M. I. Kargapolov}, title = {Universal groups}, journal = {Algebra i logika}, pages = {428--435}, publisher = {mathdoc}, volume = {9}, number = {4}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1970_9_4_a4/} }
M. I. Kargapolov. Universal groups. Algebra i logika, Tome 9 (1970) no. 4, pp. 428-435. http://geodesic.mathdoc.fr/item/AL_1970_9_4_a4/