@article{MAN_1971__192_162178,
     author = {Charles LANSKI},
     title = {Subgroups and {Conjugates} in {Semi-Prime} {Rings.}},
     journal = {Mathematische Annalen},
     pages = {313--327},
     publisher = {mathdoc},
     volume = {192},
     year = {1971},
     zbl = {0206.04403},
     url = {http://geodesic.mathdoc.fr/item/MAN_1971__192_162178/}
}