Tartajubow On Chess II: Smyslov – Botvinnik

Vasily Smyslov vs Mikhail Botvinnik (1954) The Passed Tense

Chessgames Chess Community

Icons of the Soviet Chess Board: Botvinnik-Flohr II Chess Pieces – Soviet and Late Tsarist Chess Sets

Icons of the Soviet Chess Board: Botvinnik-Flohr II Chess Pieces – Soviet and Late Tsarist Chess Sets

Friday Night's Set-Up: Botvinnik Flohr II Chessmen - Chess Forums - Chess .com

Paul Keres – Wikipédia

Botvinnik vs. Tal World Chess Championship 1961 Rematch

Botvinnik - Tal World Championship Match 1960 - Chessentials

Tartajubow On Chess II: IM Giam Choo Kwee

Tartajubow On Chess II: The KGB and Chess

Mikhail Botvinnik World Chess Hall of Fame

The Smyslov-Botvinnik World Championship match (Moscow, 1958), with annotations by Botvinnik.

Bill Wall's Chess Curriculum - 400 Days, PDF, Chess