@article{IVM_1994_3_a12,
     author = {I. Kh. Sabitov},
     title = {A~complete enumeration of centrally symmetric forms of two-dimensional metrics of constant curvature},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {65--68},
     publisher = {mathdoc},
     number = {3},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1994_3_a12/}
}