Van Der Waall, Robert W. <br/><br/>
The conductor of the quadratic residual symbols revised 

 - Nijmegen:  Catholic University, Department of Mathematics,  1977. 
 - 5p.:  29cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Quadratic forms<br/>Signs and symbols
<br/><br/><label>LC Class. No.: </label>MATH QA3.R46 N o.7715