%0 Journal Article %A N. A. Sidorov %T Classic solutions of boundary value problems for partial differential equations with operator of finite index in the main part of equation %J The Bulletin of Irkutsk State University. Series Mathematics %D 2019 %P 55-70 %V 27 %U http://geodesic.mathdoc.fr/item/IIGUM_2019_27_a4/ %G en %F IIGUM_2019_27_a4