TY  - JOUR
AU  - E. G. Emel'yanov
TI  - The tangent properties of trajectories of certain two quadratic differentials
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 2013
SP  - 90
EP  - 104
VL  - 418
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_2013_418_a5/
LA  - ru
ID  - ZNSL_2013_418_a5
ER  -