The algebraic theory of superselection sectors :  introduction and recent results  proceedings ... November 23-30, 1989 / 
editor Daniel Kastler 
 - Singapore :  World Scientific,  1990 
 - 604 p. ;  23 cm. 
<br/><br/><label>ISBN: </label>9810202067 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebraic number theory--Congresses