TY  - JOUR
AU  - Pekka Tukia
TI  - Homomorphisms of constant stretch between Möbius groups.
JO  - Commentarii mathematici Helvetici
PY  - 1991
SP  - 155
EP  - 168
VL  - 66
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1991__66_4_140228/
ID  - CMH_1991__66_4_140228
ER  -