Beyl, Rudlof F <br/><br/>
Group extensions, representations, and the Schur Multiplicator 
Rudlof F. Beyl 
 - New York  Springer-Verlag  1982 
 - IV, 274 p  25 cm 
 - Lecture notes in mathematics (Springer-Verlag)  958 .
 -  CO75-8434 .
<br/><br/> Contine bibliogr. si index 
<br/><br/><label>ISBN: </label>354011954x 038711954x