Levy David, O'Connell Kevin. Korchnoi's Chess Games

Oxford University Press, 1979. — 306 c. — ISBN: 0-19-217577-7
Viktor Lvovich Korchnoi, one of the world's two leading chess players and five times candidate for the World Championship, defected from the Soviet Union in 1976 at the age of forty-five and now lives in Switzerland. Describing Korchnoi in his intrduccion to this book, International Master Bill Harston writes: '.Korchnoi is unique. When he sits down to a game, he brings to bear a combination of concentration, determination, and energy which no other grandmaster can match.'