Yang C N Et Al <br/><br/>
Differential Geometric Methods in Theoretical Physics - Proceedings of the Xxi International Conference 

 -  World Scientific  WSPC  1993 
<br/><br/><label>ISBN: </label>9789814536448 
<br/><br/><label>Source: </label>EBOOK 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics