@book{9631,
	author = {GRAY, ANDREW. 1847-1925 and MATHEWS, G. B.},
	title = {A TREATISE ON BESSEL FUNCTIONS AND THEIR APPLICATIONS TO PHYSICS/ },
	publisher = {INSTITUTO POLITECNICO NACIONAL},
	year = {1999},
	address = {MEXICO: },
	note = {LA BIBLIOTECA TIENE SOLAMENTE EL TOMO II}
}