TY  - JOUR
AU  - M. Schiffer
AU  - O. Tammi
TI  - On the fourth coefficient of univalent functions with bounded boundary rotation
JO  - Annales Fennici Mathematici
PY  - 1967
VL  - 391-410
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1967.396/
DO  - 10.5186/aasfm.1967.396
LA  - en
ID  - AFM_1967_391-410_a14
ER  -