@article{KUKZ_1976_13_13_a19,
     author = {M. F. Kulagina and I. G. Salekhova},
     title = {The {Riemann} problem in the case of a countable set of contours that are periodically spaced in the right half-plane},
     journal = {Trudy seminara po kraevym zada\v{c}am},
     pages = {175--183},
     publisher = {mathdoc},
     volume = {13},
     number = {13},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUKZ_1976_13_13_a19/}
}