%0 Journal Article %A M. I. Khaikin %T An exceptional case of the homogeneous Riemann problem with finite index of the coefficient %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1972 %P 92-103 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1972_5_a13/ %G ru %F IVM_1972_5_a13