@article{IVM_1977_12_a4,
     author = {N. I. Kazeeva and S. N. Shimanov},
     title = {A~study of the stability of systems of difference equations in the critical case of one as a~double root},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {23--28},
     publisher = {mathdoc},
     number = {12},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1977_12_a4/}
}