Kupeli Demir N <br/><br/>
Singular semi-Riemannian geometry. 
Kupeli Demir N 
 -  1996 
<br/><br/><label>Standard No.: </label>18724 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B398, N6