TY - JOUR AU - E. P. Aksent'eva TI - On the question of existence of single-sheeted halves of symmetric Riemann surfaces JO - Trudy seminara po kraevym zadačam PY - 1974 SP - 19 EP - 24 VL - 11 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KUKZ_1974_11_11_a2/ LA - ru ID - KUKZ_1974_11_11_a2 ER -