@article{IVM_1972_3_a11,
     author = {L. I. Chibrikova and P. Kh. Mkoyan},
     title = {The {Riemann} problem for a~countable set of contours with two limit {points.~I}},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {90--102},
     publisher = {mathdoc},
     number = {3},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1972_3_a11/}
}