@techreport{Richtmyer:1963:NCAR:63,
	author		= "Richtmyer , R. D.",
	year		= "1963",
	title		= "A survey of difference methods for nonsteady
                           fluid dynamics",
	institution	= "National Center for Atmospheric Research,
                           Boulder, Colo.",
	number		= "63--2"}
