Abhyankar, Ramachandra Bhaskar <br/><br/>
A new treatment of incomplete information and vetrieval in relational data bases 
by Ramachandra Bhaskar Abhyankar 
 - West Lafayette, Indiana :  Purdue University ,  1983 
 - 160 p. ;  20 cm. 
<br/><br/>Thesis (Ph.D) - Purdue University, 1983 
<br/><br/>p: 156-159 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data base management