Conference on "Differential Geometrical Methods, in Mathematical Physics", University of Bonn, July 13-16, 1977 <br/><br/>
Differential geometrical methods in mathematical physics  ; proceedings / 

 - Berlin:  Springer-Verlag,  1978 
 - 
 - Lecture notes in Mathematics  676 .
<br/><br/><label>Dewey Class. No.: </label>530.1  / C748.DG