@book{137435,
	author = {Robles, Gil.},
	title = {Sketchbook Pro digital painting essentials /},
	publisher = {Packt Publishing,},
	year = {2013.},
	address = {Birmingham :},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10790267}
}