TY  - JOUR
AU  - È. R. Rozendorn
TI  - Properties of asymptotic lines on surfaces with slowly varying negative curvature
JO  - Doklady Akademii Nauk
PY  - 1962
SP  - 538
EP  - 540
VL  - 145
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1962_145_3_a16/
LA  - ru
ID  - DAN_1962_145_3_a16
ER  -