Integrable systems / 
editor : Song Xing-Chang. 
 - Singapore :  World Scientific,  1990. 
 - 249 p. ;  23 cm. 
<br/><br/><label>ISBN: </label>9971508567 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Integrals, Path.<br/>Statistical physics.<br/>Integrals.