@conference {1038, title = {A Microeconomic Approach to Data Trading in User Provided Networks}, booktitle = {IEEE Globecom Workshops}, year = {2015}, pages = {1{\textendash}7}, author = {Lorenzo, B and Gomez-Cuba, F and Garcia-Rois, J and Gonzalez-Castano, F J and Burguillo, J C} }