@article{IVM_1969_4_a14,
     author = {E. K. Timofeev},
     title = {A~certain nonlinear boundary value problem},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {92--102},
     year = {1969},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1969_4_a14/}
}