The Fokker-Planck equation/  methods of solution and applications 
H. Risken. 
 - 2nd ed. 
 - New York ::  Springer-Verlag,  c1996. 
 - xiv, 472 p. : 
<br/><br/><label>ISBN: </label>354061530X (alk. paper) 
<br/><br/><label>Dewey Class. No.: </label>530  / RIS/F