@article{DAN_1989_305_2_a4,
     author = {N. G. Nesterenko},
     title = {Algebras that can be represented by triangular matrices},
     journal = {Doklady Akademii Nauk},
     pages = {276--279},
     publisher = {mathdoc},
     volume = {305},
     number = {2},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_305_2_a4/}
}