@book{246871,
	author = {Zhang, Ling. and Zhang, Bo.},
	title = {Quotient space based problem solving : a theoretical foundation of granular computing / },
	publisher = {Morgan Kaufmann,},
	year = {2014.},
	address = {Waltham, MA :},
	edition = {1st ed.},
	url = {http://www.sciencedirect.com/science/book/9780124103870}
}