Campeonato Mundial de Xadrez de 1981 – Wikipédia, a enciclopédia livre

Karpov - Korchnoi World Championship Match (1978) chess event

Grandes Rivalidades do Xadrez: Karpov x Korchnoi

Last Man Standing: Viktor Korchnoi

Douglas Griffin on X: Hastings, December 1971. Soviet GMs Viktor Korchnoi & Anatoly Karpov pose for a photo. They went on to share 1st-2nd place in the Hastings International, ahead of Mecking

Closing Gambit: 1978 Korchnoi versus Karpov and the Kremlin (2018) - IMDb

Karpov – Korchnoi, World championship Baguio 1978 - Listing # 29737 - Preserving the past and the future

Tenth Interpolis Chess Tournament in Tilburg; A. Karpov (l) against V. Korchnoi (r), October 21, 1986, chess, tournaments, The Netherlands, 20th century press agency photo, news to remember, documentary, historic photography 1945-1990

Korchnoi x Karpov – Merano 1981 – MI Mauro de Souza

Tal, Petrosian, Spassky And Korchnoi - Annotated By Andrew Soltis (paperback) : Target

Karpov at 70: “My great blunder was I agreed to hold the match with Kasparov in the Soviet Union”