@article{DAN_1964_158_3_a9,
     author = {G. P. Tolstov},
     title = {Three types of abstract integrals},
     journal = {Doklady Akademii Nauk},
     pages = {536--539},
     publisher = {mathdoc},
     volume = {158},
     number = {3},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_158_3_a9/}
}