@article{GDZPPN002387573, title = {Finite Factors in Infinite Ascending Derived Series.}, journal = {Mathematische Zeitschrift}, volume = {67}, year = {1957}, pages = {465-478}, zbl = {0079.25302}, url = {http://dml.mathdoc.fr/item/GDZPPN002387573} }
Baumslag, Gilbert. Finite Factors in Infinite Ascending Derived Series.. Mathematische Zeitschrift, Tome 67 (1957) pp. 465-478. http://gdmltest.u-ga.fr/item/GDZPPN002387573/