%0 Journal Article %A B. L. Shekhter %T A two-point de la Vall\'ee--Poussin problem %J Differencialʹnye uravneniâ %D 1979 %P 1457-1467 %V 15 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1979_15_8_a11/ %G ru %F DE_1979_15_8_a11