TY  - JOUR
AU  - John Ryan
TI  - Generalized Schwarzian derivatives for generalized fractional linear transformations
JO  - Annales Polonici Mathematici
PY  - 1992
SP  - 29
EP  - 44
VL  - 57
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-57-1-29-44/
DO  - 10.4064/ap-57-1-29-44
LA  - en
ID  - 10_4064_ap_57_1_29_44
ER  -