TY  - BOOK
AU  - Calin, O
AU  - Chang, D
TI  - Sub-riemannian geometry: general theory and examples
SN  - 9780521897303
U1  - 514.764.2 
PY  - 2009///
CY  - Cambridge
PB  - Cambridge
KW  - RIEMANNIAN GEOMETRY
KW  - RIEMANNIAN MANIFOLDS
ER  -