Boris Spassky vs Tigran Petrosian (1969)

Boris Spassky, left and Bobby Fischer analyze their match in Sveti

Bobby Fischer: Icon Among Icons, Photographs by Harry Benson CBE by World Chess Hall of Fame - Issuu

Boris Spassky vs Tigran V Petrosian World Championship Match (1966)

Petrosian - Spassky World Championship Match 1966 - Chessentials

Tal, Petrosian, Spassky and Korchnoi, by Andrew Soltis –

Boris Spassky vs Tigran V Petrosian World Championship Match, 1966

Match Of The Century: Player Interviews

Games - Top 10 Games of The 1960s - Taming The Tiger - Spassky VS Petrosian, 1969

Tigran V Petrosian vs Boris Spassky World Championship Match (1966)

The Fischer-Petrosian Candidates' Final (Buenos Aires, 1971) with annotations by Korchnoi, Furman, Kholmov & Polugaevsky.