@article{DE_1990_26_6_a6,
     author = {V. S. Rykhlov},
     title = {The rate of equiconvergence for differential operators with a nonzero coefficient multiplying the $(n-1)$st derivative},
     journal = {Differencialʹnye uravneni\^a},
     pages = {975--989},
     publisher = {mathdoc},
     volume = {26},
     number = {6},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_6_a6/}
}