@book{5563,
	author = {Santis Soto, Jorge Amilcar and Villatoro López, Jorge Luis },
	title = {Comprobación de la eficacia de los retenedores Myoloc.},
	publisher = {USAC, },
	year = {1997},
	address = {Guatemala :},
	url = {http://biblioteca.usac.edu.gt/tesis/09/09_1324.pdf}
}