@article{VMUMM_1982_2_a6,
     author = {P. N. Siderov},
     title = {Two remarks on critical associative rings},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {24--28},
     year = {1982},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1982_2_a6/}
}