@booklet {,
	title = {Hole-filled SRTM for the globe Version 3, CGIAR-CSI SRTM 90m Database},
	year = {2006},
	publisher = {Consultative Group for International Agricultural Research },
	url = {http://srtm.csi.cgiar.org},
	author = {Jarvis, A. and Reuter, H. I. and Nelson, A. and Guevara, E.}
}