@article{RSMUP_1977__58__1_0, author = {Messa, Kenneth}, title = {A generalization of Ulm subgroups}, journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova}, volume = {58}, year = {1977}, pages = {1-7}, mrnumber = {543124}, zbl = {0417.16016}, language = {en}, url = {http://dml.mathdoc.fr/item/RSMUP_1977__58__1_0} }
Messa, Kenneth. A generalization of Ulm subgroups. Rendiconti del Seminario Matematico della Università di Padova, Tome 58 (1977) pp. 1-7. http://gdmltest.u-ga.fr/item/RSMUP_1977__58__1_0/
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