TY - JOUR AU - G. A. Kovaleva TI - Non-existence of closed asymptotic curves on the tubes of negative Gaussian curvature with one-to-one spherical mapping JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 1995 SP - 953 EP - 977 VL - 1 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_1995_1_4_a7/ LA - ru ID - FPM_1995_1_4_a7 ER -