@article{DE_1977_13_10_a32,
     author = {A. V. Kondrashkov},
     title = {Letter to the editors: {``Certain} boundary value problems for a pseudoparabolic equation'' {(Differencial'nye} {Uravnenija} \textbf{13} (1977), no. 1, 90--99)},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1904},
     publisher = {mathdoc},
     volume = {13},
     number = {10},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1977_13_10_a32/}
}