Albăstroiu, I., and M. Felea. “The Implications of User-Generated Content Websites for Tourism Marketing”. International Journal of Economic Practices and Theories, vol. 4, no. 2, Feb. 2014, pp. 222-9, http://inscriere.excelis.ase.ro/index.php/ijept/article/view/The_Implications_of_User_Generated_Content_Websites_for_Touris.