Karpov - Korchnoi World Championship Match 1981 - Chessentials

Karpov - Korchnoi World Championship Match 1981. The second match between two former friends and enemies Karpov and Korchnoi, once again ending in the triumph for the younger.

Karpov's annotations to his six wins from Merano, 1981.

124-Move Chess Game at a World Chess Championship 1978 - Of Korchnoi-Karpov Missed Checkmate and Stalemate ~ Chess Magazine Black and White

The dirtiest chess match in history': Stean on Karpov-Korchnoi, 1978

Garry Kasparov - Wikipedia

World Chess Championship 1981 Anatoly Karpov vs Viktor Korchnoi Match Stamps

History of the World Chess Championship - Chessentials

The dirtiest chess match in history': Stean on Karpov-Korchnoi, 1978

Karpov SHINES in the Spanish, Karpov vs Korchnoi, World Chess Championship 1981

Perpetual Chess Podcast

The Karpov-Korchnoi Candidates' Final (Moscow, 1974), with annotations by Botvinnik.