%0 Journal Article %A G. A. Kovaleva %T Non-existence of closed asymptotic curves on the tubes of negative Gaussian curvature with one-to-one spherical mapping %J Fundamentalʹnaâ i prikladnaâ matematika %D 1995 %P 953-977 %V 1 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_1995_1_4_a7/ %G ru %F FPM_1995_1_4_a7