@article{IVM_1961_5_a8,
     author = {A. G. Teterev},
     title = {Positive solutions of integral equations},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {69--77},
     year = {1961},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1961_5_a8/}
}