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@article{MASLO_1997__47_5_a2, author = {Ton, Dao-Rong}, title = {The {Galois} connection between weak torsion and sub-product classes of $l$-groups}, journal = {Mathematica slovaca}, pages = {511--516}, publisher = {mathdoc}, volume = {47}, number = {5}, year = {1997}, mrnumber = {1635297}, zbl = {0938.06013}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1997__47_5_a2/} }
Ton, Dao-Rong. The Galois connection between weak torsion and sub-product classes of $l$-groups. Mathematica slovaca, Tome 47 (1997) no. 5, pp. 511-516. http://geodesic.mathdoc.fr/item/MASLO_1997__47_5_a2/