@book{29126,
	author = {Real Pérez, Alicia, and Gascón Inchausti, Fernando,},
	title = {Obligaciones y contratos :},
	publisher = {Dykinson, S.L.,},
	year = {2009.},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/13636/}
}