Sub Riemannian geometry   
ed by Andre Bellaiche, Jean-Jacques Risler 
 - Basel  Birkhauser Verlag  1996 
 - viii, 393p. 
 - Progress in mathematics  Vol. 144 .
<br/><br/><label>ISBN: </label>3764354763 
<br/><br/><label>Dewey Class. No.: </label>516.373  / N961