1. Abbattista, F., Degemmis, M., Licchelli, O., Lops, P., Semeraro, G., & Zambetta, F. (2002, May 28). Improving the usability of an e-commerce web site through personalization. Paper presented at the Workshop on Recommendation and Personalization in eCommerce, Malaga, Spain.
2. Balabanovic, M., Chu, L., & Wolff, G. (2000, April 1-6). Storytelling with Digital Photographs. In T. Turner, G. Szwillus, M. Czerwinski, F. Peterno, & S. Pemberton (Eds.), ACM CHI 2000 Human Factors in Computing (pp. 564–571). Hague, The Netherlands.
3. Blackshaw, P. (2009). The Pocket Guide t. Retrieved June 10, 2009, from http://www.clickz.com/showPage.html?page=3515576
4. Collaborative Filtering for Information Recommendation Systems;A.Chen;Encyclopedia of E-Commerce,2006
5. Desktop Publishing. (2009). Retrieved June 15, 2009, from http://desktoppub.about.com/od/scanninggraphics/a/dig_trad_photos.htm