@article{AL_2000_39_6_a3,
     author = {Yu. V. Nagrebetskaya},
     title = {The boundary equivalence for rings and matrix rings over them},
     journal = {Algebra i logika},
     pages = {693--710},
     year = {2000},
     volume = {39},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2000_39_6_a3/}
}