@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/}
}