Thanks for collaboration !
Anny C. S. Santos
Bruno Z. W.
Eleutério Lagowski
Daniel Vilela
Nilton Bartalini
Paulo Rossi
Renan Pilla
Roger Júnior
Vinícius Almeida
BRGibb Fã Clube Brasil.
Books:
Bilyeu, Cook, Hughes (2000): The Bee Gees. Tales of the Brothers Gibb. Omnibus Press.
Booklet:
Studio Albuns.
Magazines:
Rockmine Almanac
Shin-Dig Magazine
ABC
Billboard
New York Times
People
Rolling Stone
The Mirror
Sources:
Billboard