World Chess Championship 1985 - Wikipedia

ELO ratings: Variations in time - Woochess-Let's chess

FIDE - International Chess Federation - Did you know that only 7 players have been rated #1 in the world (standard chess) since the FIDE rating list was first published in July

Kasparov was a beast, but people forget Karpov too quickly. Rating July 1989. See the distance #2 - #3 . A bit of love for Karpov too! : r/chess

Anatoly Karpov World Chess Hall of Fame

Estimated Rating - bug or by design? - Chess Forums

Karpov vs Fischer: Who Is More Popular? - EnthuZiastic

1978-KARPOV-VS.-KORTCHNOI - Play Chess with Friends

Visualization of January FIDE ratings

Why has Karpov's chess rating gotten to 2600? - Quora

Karpov: Move by Move by Sam Collins (2015-09-07): : Books