Jurgensen H <br/><br/>
Semigroups    Proceedings of a conference held at oberwolfach ,germany december 16-21,1978. 

 -  1981 
<br/><br/><label>Standard No.: </label>125511 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B27, M1