Bridges, Douglas S. <br/><br/>
Computability :  a mathematical sketchbook / 
Douglas S. Bridges 
 - Berlin :  Springer-Verlag,  1994 
 - 178 p. ;  24 cm. 
 - Graduate texts in mathematics .
<br/><br/>References : p. 171-174 
<br/><br/><label>ISBN: </label>3540941746 
<br/><br/><label>LCCN: </label>93-021313 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computable functions