@article{JRAM_1968__232_150880,
     author = {Bruno J. M\"uller},
     title = {Dominant dimension of semi-primary rings.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {173--179},
     publisher = {mathdoc},
     volume = {232},
     year = {1968},
     zbl = {0165.35303},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1968__232_150880/}
}