TY  - JOUR
AU  - S. K. Vodop'yanov
TI  - Differentiability of maps of  Carnot groups of Sobolev classes
JO  - Sbornik. Mathematics
PY  - 2003
SP  - 857
EP  - 877
VL  - 194
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_2003_194_6_a3/
LA  - en
ID  - SM_2003_194_6_a3
ER  -