Chessmetrics Ratings: 20th Birthday

Why Can't Rapidly Improving Chess Players Have Elo Keep Up???, by Tony Berard, Nov, 2023

The Greatest Chess Player of All Time - Part II

World Chess Champions (According to Rating) - Remote Chess Academy

Boris Spassky, Biography & Facts

1972 World Chess Championship - Bobby Fischer vs Boris Spassky : r

Monthly Lists: 1968 - 1971

Boris Spassky's 400 Selected Games (Games Collections)

BORIS SPASSKY'S 300 WINS (CHESS STARS) By Sergei Soloviov

Spassky's 100 Best Games: The Rise of Boris Spassky, 1949 - 1971 (Hardinge Simpole Chess Classics S): Cafferty, Bernard, Barden, Leonard: 9781843820000: : Books

Bobby Fischer, Troubled Genius of Chess, Dies at 64 - The New York Times