@book{PressEtAl:1986:NUMRECIPE,
	author		= "W. H. Press and B. P. Flannary and S. A.
                           Teukolsky and W. T. Vetterling",
	year 		= "1986",
	title		= "Numerical Recipes : the art of scientific
                           computing", 
	publisher	= "Cambridge"}
