@article{IVM_2021_6_a3,
     author = {P. A. Krylov and Ts. D. Norbosambuev},
     title = {$k$-good formal matrix rings of infinite order},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {35--42},
     publisher = {mathdoc},
     number = {6},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2021_6_a3/}
}