TY  - JOUR
AU  - Z. J. Jakubowski
AU  - A. Szwankowski
TI  - On some extremal problem in the class of holomorphic symmetric univalent functions
JO  - Commentationes Mathematicae
PY  - 1990
SP  -  195
EP  - 207
VL  - 29
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14708/cm.v29i2.6271/
DO  - 10.14708/cm.v29i2.6271
LA  - pl
ID  - 10_14708_cm_v29i2_6271
ER  -