@article{IVM_1959_2_a11,
     author = {G. S. Litvinchuk},
     title = {Integral equations with many-valued kernels},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {128--137},
     publisher = {mathdoc},
     number = {2},
     year = {1959},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1959_2_a11/}
}