TY  - JOUR
AU  - S. Yu. Graf
TI  - The Schwarzian derivatives of harmonic functions and univalence conditions
JO  - Problemy analiza
PY  - 2017
SP  - 42
EP  - 56
VL  - 6
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PA_2017_6_2_a2/
LA  - en
ID  - PA_2017_6_2_a2
ER  -