@article{CharneyEtAl:1950:Tellus:2:237,
	author		= "Charney , J. G. and {Fj\o rtoft} , R. and {von Neuman} ,
                           J.",
	year		= "1950",
	title		= "Numerical integration of the barotropic
                           vorticity equation",
	journal		= "Tellus",
	volume		= "2",
	pages		= "237--254"}
