@article{DM_1992_4_2_a4,
     author = {A. N. Alekseichuk and V. P. Elizarov},
     title = {Finite rings with a~large number of zero divisors},
     journal = {Diskretnaya Matematika},
     pages = {45--51},
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1992_4_2_a4/}
}