%0 Journal Article %A I. A. Bikchantaev %T The Riemann problem on a three-sheeted surface for which the projections of branching points have one accumulation point %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2007 %P 25-32 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2007_5_a2/ %G ru %F IVM_2007_5_a2