R. Casalbuoni, R. Giachetti, V. Tognetti, R. Vaia and P. Verrucchi <br/><br/>
Proceedings of the Sixth International Conference on Path Integrals from peV to TeV 50 Years after Feynman's Paper 

 - Singapore  World Scientific Company   1999 
 - 619 
<br/><br/><label>ISBN: </label>981-02-3821-5 
<br/><br/><label>Dewey Class. No.: </label>530.143  / CAS