@article{IVM_1960_1_a25,
     author = {I. Sh. \`Epshtein},
     title = {Complete classification of the real conic sections in the extended hyperbolic plane},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {234--243},
     publisher = {mathdoc},
     number = {1},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1960_1_a25/}
}