@book{30210,
	author = {Savin-Baden, Maggi,},
	title = {Threshold concepts in problem-based learning /},
	publisher = {Brill Sense,},
	year = {[2018]},
	series = {Educational Research E-Books Online, Collection 2018, ISBN: 9789004375666},
	address = {Leiden ;},
	url = {http://dx.doi.org/10.1163/9789004375123}
}