@book{12133,
	author = {Wienke, Andreas.},
	title = {Frailty models in survival analysis},
	publisher = {Taylor & Francis,},
	year = {2011.},
	series = {Chapman & Hall/CRC biostatistics series},
	address = {Boca Raton :},
	note = {"A CRC title."},
	url = {http://marc.crcnetbase.com/isbn/9781420073911}
}