TY - JOUR AU - I. Kh. Sabitov TI - A~complete enumeration of centrally symmetric forms of two-dimensional metrics of constant curvature JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1994 SP - 65 EP - 68 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1994_3_a12/ LA - ru ID - IVM_1994_3_a12 ER -