TY  - JOUR
AU  - A. L. Verner
TI  - The finiteness of the set of branch points of a spherical mapping of a narrowing saddle surface
JO  - Matematičeskie zametki
PY  - 1972
SP  - 281
EP  - 286
VL  - 12
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1972_12_3_a8/
LA  - ru
ID  - MZM_1972_12_3_a8
ER  -