@article{GDZPPN002489864, title = {On the Radicals of Structural Matrix Rings.}, journal = {Monatshefte f\"ur Mathematik}, volume = {121}, year = {1996}, pages = {227-238}, zbl = {0881.16011}, url = {http://dml.mathdoc.fr/item/GDZPPN002489864} }
Veldsman, Stefan. On the Radicals of Structural Matrix Rings.. Monatshefte für Mathematik, Tome 121 (1996) pp. 227-238. http://gdmltest.u-ga.fr/item/GDZPPN002489864/