TY  - JOUR
AU  - W. Janowski
TI  - Some extremal problems for certain families of analytic functions I
JO  - Annales Polonici Mathematici
PY  - 1973
SP  - 297
EP  - 326
VL  - 28
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-28-3-297-326/
DO  - 10.4064/ap-28-3-297-326
LA  - en
ID  - 10_4064_ap_28_3_297_326
ER  -