TY - JOUR AU - F. S. Nasrulaev TI - The connectivity of a~complete smooth surface with one-to-one spherical representation JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1968 SP - 62 EP - 69 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1968_12_a7/ LA - ru ID - IVM_1968_12_a7 ER -