TY  - JOUR
AU  - G. V. Kuz'mina
TI  - Extremal properties of quadratic differentials with trajectories which are asymptotically similar to logarithmic spirals
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1987
SP  - 121
EP  - 137
VL  - 160
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1987_160_a11/
LA  - ru
ID  - ZNSL_1987_160_a11
ER  -