@book{47119,
	author = {Chang, Mark},
	title = {Adaptive design theory and implementation using SAS and R /},
	publisher = {Chapman & Hall/CRC,},
	year = {c2008},
	series = {Chapman & Hall/CRC biostatistics series},
	address = {Boca Raton :},
	url = {http://www.loc.gov/catdir/toc/ecip0713/2007011412.html}
}