TY  - JOUR
AU  - David Swanson
TI  - Pointwise inequalities and approximation in
fractional Sobolev spaces
JO  - Studia Mathematica
PY  - 2002
SP  - 147
EP  - 174
VL  - 149
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/sm149-2-5/
DO  - 10.4064/sm149-2-5
LA  - en
ID  - 10_4064_sm149_2_5
ER  -