@article{IVM_1972_5_a13,
     author = {M. I. Khaikin},
     title = {An exceptional case of the homogeneous {Riemann} problem with finite index of the coefficient},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {92--103},
     publisher = {mathdoc},
     number = {5},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1972_5_a13/}
}