@article{MAT_1961_5_1_a1,
     author = {P. M. Cohn},
     title = {On a class of simple rings},
     journal = {Matematika},
     pages = {31--46},
     publisher = {mathdoc},
     volume = {5},
     number = {1},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1961_5_1_a1/}
}