@book{14920,
	author = {Du, Xiangyun,},
	title = {Research on PBL Practice in Engineering Education /},
	publisher = {Brill | Sense,},
	year = {2009.},
	series = {Educational Research E-Books Online, Collection 2005-2017, ISBN: 9789004394001},
	address = {Leiden; },
	url = {http://dx.doi.org/10.1163/9789087909321}
}