@article{KUTGS_1976_9_a5,
     author = {V. I. Evseev},
     title = {The geometry of the manifold of {Lobahcevskii} planes},
     journal = {Trudy Geometricheskogo Seminara},
     pages = {32--42},
     year = {1976},
     volume = {9},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUTGS_1976_9_a5/}
}