@article{IVM_1983_2_a7,
     author = {Ya. L. Shapiro and V. A. Igoshin},
     title = {Mappings that preserve trajectories of quasigeodesic flows},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {72--79},
     publisher = {mathdoc},
     number = {2},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1983_2_a7/}
}