@article{IVM_1961_4_a9,
     author = {G. Ya. Popov},
     title = {On an integral equation},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {99--103},
     year = {1961},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1961_4_a9/}
}