Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AL_1990_29_1_a2, author = {A. S. Morozov}, title = {On a problem of {Higman}}, journal = {Algebra i logika}, pages = {29--34}, publisher = {mathdoc}, volume = {29}, number = {1}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1990_29_1_a2/} }
A. S. Morozov. On a problem of Higman. Algebra i logika, Tome 29 (1990) no. 1, pp. 29-34. http://geodesic.mathdoc.fr/item/AL_1990_29_1_a2/