@book{12988,
	author = {Ramsay, Arlan and Richtmyer, Robert D. and Richtmyer, Robert D. ;jt.auth.},
	title = {Introduction to hyperbolic geometry},
	publisher = {Springer-Verlag},
	year = {1995},
	series = {Universitext},
	address = {New York},
	note = {"Purchased under NBHM grant for the year 1994-1995"}
}