Shen, A & Vereshchagin, N.K <br/><br/>
Computable functions 
A. Shen & N.K. Vereshchagin 
 - Providence  American Mathematical Society  2003 
 - viii  166 
 - Student mathematical library 19 .
<br/><br/><label>ISBN: </label>9780821827321 
<br/><br/><label>Dewey Class. No.: </label>1.02+18+28  / SHEN