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@article{CM_1956-1958__13__47_0, author = {Neumann, B. H.}, title = {Ascending derived series}, journal = {Compositio Mathematica}, pages = {47--64}, publisher = {Kraus Reprint}, volume = {13}, year = {1956-1958}, mrnumber = {89196}, zbl = {0070.25405}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CM_1956-1958__13__47_0/} }
Neumann, B. H. Ascending derived series. Compositio Mathematica, Tome 13 (1956-1958), pp. 47-64. http://geodesic.mathdoc.fr/item/CM_1956-1958__13__47_0/