@article{briguez13theoretical, author = "Cristian Briguez and Marcela Capobianco and Ana G. Maguitman", title = "A Theoretical Framework for Trust-Based News Recommender Systems and its Implementation Using Defeasible Argumentation", journal = "International Journal on Artificial Intelligence Tools", year = "2013", issn = "0218-2130.", publisher = "World Scientific", url = "http://dx.doi.org/10.1142/S0218213013500218", volume = "22", number = "4", }