TY  - JOUR
AU  - P. M. Tamrazov
TI  - Extremal conformal mappings and poles of quadratic differentials
JO  - Izvestiya. Mathematics 
PY  - 1968
SP  - 987
EP  - 996
VL  - 2
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1968_2_5_a2/
LA  - en
ID  - IM2_1968_2_5_a2
ER  -