%0 Journal Article %A A. V. Kondrashkov %T Letter to the editors: ``Certain boundary value problems for a pseudoparabolic equation'' (Differencial'nye Uravnenija \textbf{13} (1977), no. 1, 90--99) %J Differencialʹnye uravneniâ %D 1977 %P 1904 %V 13 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_10_a32/ %G ru %F DE_1977_13_10_a32