Tachikawa, Hiroyuki <br/><br/>
Quasi-frobeniue rings and generalizations; QF-3 and QF-1 rings   

 - Berlin  Springer-Verlag  1973 
 - x, 172p. 
 - Lecture notes in Mathematics   351 .
<br/><br/> "Notes by Claus Michael Ringel"   
<br/><br/><label>Dewey Class. No.: </label>512  / T117.QF