Classical and quantum systems :  foundations and symmetries :  proceedings of the II International Wigner symposium, Goslar, Germany, July 16-20, 1991 / 
organizedd by : Arnold Sommerfeld Insitute for Mathematical Physics, Technical University Clausthal and Department of Mathematics, Florida Atlantic University ; editors: H. D. Doebner, W. Scherer, F. Schroeck, Jr. 
 - Singapore  :  World Scientific,  1993 
 - 797  p.  :  ill.  ;  23 cm. 
<br/><br/><label>ISBN: </label>981021099X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Symmetry (Physics)--Congresses<br/>Quantum theory--Congresses