@book{76127,
	author = {Epstein, Charles L. and Mazzeo, Rafe.},
	title = {Degenerate diffusion operators arising in population biology/},
	publisher = {Princeton University Press,},
	year = {2013.},
	url = {http://portal.igpublish.com/iglibrary/search/PUPB0001835.html}
}