Lerman, M <br/><br/>
Degrees of unsolvability  local and global theory 
Manuel Lerman 
 - Berlin  New York  Springer-Verlag  1983 
 - xiii, 307 p  ill  25 cm 
 - Perspectives in mathematical logic .
<br/><br/> Cuprinde bibliografie si index 
<br/><br/><label>ISBN: </label>0387121552 (U.S.) 
<br/><br/><label>LCCN: </label>83000436 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Unsolvability (Mathematical logic)