1.		Relatório de Sustentabilidade 2008 / Câmara Municipal do Porto Data Publicação: 2009 Col.autor: Porto. Câmara Municipal COTA(S): 14648
2.		Hospitality teams: knowledge sharing and service innovation performance / Meng-Lei Monica Hu, Jeou-Shyan Horng, Yu-Hua Christine Sun Autor: Meng-Lei, Monica Hu Coautor: ; Jeou-Shynan, Horng Yu-Hua, Christine Sun COTA(S): RE-1193
3.		Challenges and opportunities for a European strategy in support of innovation in services : Fostering new markets and jobs through innovation / European Commission Data Publicação: 2009 Col.autor: European Commission COTA(S): 15573