"Communication"(PDF). FC Porto (بالبرتغالية). Published by Portuguese Securities Market Commission (CMVM). 30 Jun 2000. Archived from the original(PDF) on 2016-03-03. Retrieved 2010-11-11.
"Communication"(PDF). FC Porto (بالبرتغالية). Published by Portuguese Securities Market Commission (CMVM). 30 Jun 2000. Archived from the original(PDF) on 2016-03-03. Retrieved 2010-11-11.