Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1964__85_170310, author = {Frank Levin}, title = {On some varieties of soluble.}, journal = {Mathematische Zeitschrift}, pages = {369--372}, publisher = {mathdoc}, volume = {85}, year = {1964}, zbl = {0122.03002}, url = {http://geodesic.mathdoc.fr/item/MZ_1964__85_170310/} }
Frank Levin. On some varieties of soluble.. Mathematische Zeitschrift, Tome 85 (1964), pp. 369-372. http://geodesic.mathdoc.fr/item/MZ_1964__85_170310/