The field for this year's Tepe Sigeman tournament, including Liem, Shirov, Sarin, and Anatoly Karpov! : r/chess

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

rating - Why have engines not increased top rated chess players' Elo? - Chess Stack Exchange

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 - Wikipedia

Top 10 greatest chess players of all time according to Opening Master

Estimated Rating - bug or by design? - Chess Forums

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

E-DVD - Karpov Endgames - Chess Lecture - Volume 96

Training Program for Juniors and 3rd Category Players

Anatoly Karpov - Wikipedia, PDF, World Chess Championships