Verschoren,A. <br/><br/>
Relative Invariants of Sheaves 
by A Verschoren 
 - new york  marcle dekker,inc.  1987 
 - xi,249p. 
<br/><br/><label>ISBN: </label>0 8247-7734-4 
<br/><br/><label>Dewey Class. No.: </label>511.3   / VER/R