Verdaguer E, Garriga J & Cespedes J <br/><br/>
Recent Developments in Gravitation - Proceedings of the "Relativity Meeting – 89" 

 -  World Scientific  WSPC  1990 
<br/><br/><label>ISBN: </label>9789814540292 
<br/><br/><label>Source: </label>EBOOK 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics