Shabbir, Tayyaba <br/><br/>
Double-Null Form for (3+1) Dimensional Spacetimes / 
Tayyaba Shabbir 
 - Islamabad :  SNS - NUST,  2015. 
 - vi, 43 p. : ill. ;  30cm. 
<br/><br/> Hardcover 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics - M. Phil Thesis
<br/><br/><label>Dewey Class. No.: </label>510