%0 Journal Article %A V. I. Gorbachev %T Integral formulas of solutions of the basic linear differential equations of mathematical physics with variable factors %J Čebyševskij sbornik %D 2017 %P 210-234 %V 18 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CHEB_2017_18_3_a12/ %G ru %F CHEB_2017_18_3_a12