%0 Journal Article %A I. A. Bikchantaev %T An estimate for the number of solutions of the homogeneous Riemann problem on a~parabolic Riemann surface %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2000 %P 3-5 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2000_1_a0/ %G ru %F IVM_2000_1_a0