Group and semigroup rings:  proceedings of the International Conference on Group and Semigroup Rings, University of the Witwatersrand, Johannesburg, South Africa, 7-13 July, 1985/ 
edited by Gregory Karpilovsky. 
 - Amsterdam ;  New York:  New York:  North-Holland,  Sole distributors for the U.S.A. and Canada, Elsevier Science,  1986. 
 - viii, 267 p. ;  24 cm. 
 - Notas de matemática ;  111. North-Holland mathematics studies  126. .
 - Notas de Matemática (North-Holland),  no. 111. .
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0444700439 (U.S. : soft) 
<br/><br/><label>LCCN: </label>86011545 //r87 
<br/><br/><label>Nat. Bib. No.: </label>GB88-20108 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Group rings---Congresses.<br/>Semigroup rings---Congresses.
<br/><br/><label>Subjects--Index Terms: </label>Group rings 
<br/><br/><label>Dewey Class. No.: </label>512.2