TY  - JOUR
AU  - Björn, Anders
AU  - Björn, Jana
AU  - Shanmugalingam, Nageswari
TI  - Sobolev Extensions of Hölder Continuous and Characteristic Functions on Metric Spaces
JO  - Canadian journal of mathematics
PY  - 2007
SP  - 1135
EP  - 1153
VL  - 59
IS  - 6
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-2007-049-7/
DO  - 10.4153/CJM-2007-049-7
ID  - 10_4153_CJM_2007_049_7
ER  -