TY - JOUR AU - I. A. Bikchantaev TI - The Riemann problem on a three-sheeted surface for which the projections of branching points have one accumulation point JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2007 SP - 25 EP - 32 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_2007_5_a2/ LA - ru ID - IVM_2007_5_a2 ER -