Proceedings of the ENEA workshops on nonlinear dynamics:  dynamical symetries and chaotic behaviour in physical systems, ENEA, Bologna,Italy 20-21 June 1989/ 
editors Guiseppe Maino, Leone Fronzoni, Marco Pettini. 
 - Singapore:  World Scientific,  1991. 
 - 279 pages:  illustrations ;  23 cm. 
<br/><br/><label>ISBN: </label>9810202962 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical physics--Congresses.<br/>Nonlinear theories--Congresses.<br/>Chaotic behavior in systems--Congresses.