%0 Journal Article %A I. N. Bogaenko %A M. V. Boychuk %T Questions concerning the improvement of the convergence of series in the solution of second-order equations of parabolic type %J Differencialʹnye uravneniâ %D 1983 %P 694-697 %V 19 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1983_19_4_a20/ %G ru %F DE_1983_19_4_a20