@article{DE_1997_33_8_a0,
     author = {V. V. Basov},
     title = {Convergence of the normalizing transformation in the critical case when two zero roots of the characteristic equation have a nonprime elementary divisor},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1011--1016},
     publisher = {mathdoc},
     volume = {33},
     number = {8},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1997_33_8_a0/}
}