%0 Journal Article %A G. P. Tolstov %T Three types of abstract integrals %J Doklady Akademii Nauk %D 1964 %P 536-539 %V 158 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_158_3_a9/ %G ru %F DAN_1964_158_3_a9