@article{JRAM_1973__0262_0263_151354,
     author = {Wolfgang Liebert},
     title = {The {Jacobson} radical of some endomorphism rings.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {166--170},
     publisher = {mathdoc},
     volume = {0262_0263},
     year = {1973},
     zbl = {0266.16004},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1973__0262_0263_151354/}
}