1.		Destination Unknown : how U.S. and European Travelers decide where to go 2013 / John DiStefano, Lorraine Sileo, Marcello Gasdia Autor: DiStefano, John Data Publicação: 2014 Coautor: SILEO, Lorraine Gasdia, Marcello COTA(S): 15117
2.		Panorama du voyage en ligne. Éttas-Unis, Europa et Asie-Pacifique / SILEO, Lorraine Autor: SILEO, Lorraine COTA(S): RE-411