TY  - JOUR
AU  - Kari Astala
AU  - Juha Heinonen
TI  - On quasiconformal rigidity in space and plane
JO  - Annales Fennici Mathematici
PY  - 1988
SP  - 81
EP  - 92
VL  - 13
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1988.1301/
DO  - 10.5186/aasfm.1988.1301
LA  - en
ID  - AFM_1988_13_1_a3
ER  -