@article{VTGU_2018_52_a0,
     author = {T. D. Norbosambuev},
     title = {Rank of formal matrix. {System} of formal linear equations. {Zero} divisors},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {5--12},
     year = {2018},
     number = {52},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTGU_2018_52_a0/}
}