TY - JOUR AU - M. F. Kulagina AU - I. G. Salekhova TI - The Riemann problem in the case of a countable set of contours that are periodically spaced in the right half-plane JO - Trudy seminara po kraevym zadačam PY - 1976 SP - 175 EP - 183 VL - 13 IS - 13 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KUKZ_1976_13_13_a19/ LA - ru ID - KUKZ_1976_13_13_a19 ER -