A generalization of Ulm subgroups
Rendiconti del Seminario Matematico della Università di Padova, Tome 58 (1977), p. 1-7
@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},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {58},
     year = {1977},
     pages = {1-7},
     zbl = {0417.16016},
     mrnumber = {543124},
     language = {en},
     url = {http://www.numdam.org/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://www.numdam.org/item/RSMUP_1977__58__1_0/

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