Norton, Karl K.  1938- <br/><br/>
Numbers with small prime factors, and the least kth power non-residue/ 
Karl K. Norton. 
 - Providence, R.I.:  American Mathematical Society,  1971. 
 - 106 p. 
 - Memoirs of the American Mathematical Society;  no. 106. .
<br/><br/>Bibliography: p. 101-106. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Number theory.