@book{49020,
	author = {Piirto, Jane,},
	title = {Creativity for 21st Century Skills :},
	publisher = {Brill | Sense,},
	year = {2011.},
	series = {Educational Research E-Books Online, Collection 2005-2017, ISBN: 9789004394001},
	address = {Leiden; },
	url = {http://dx.doi.org/10.1007/978-94-6091-463-8}
}