Koestler, Arthur et al. "Comments on Samarakis' Novel The Flaw". The Charioteer 13 (1971): 23-25.

The 'et al.' here include: Graham Greene, Agatha Christie, Georges Simenon, Ignazio Silone, André Malraux. Hervé Bazin, Pierre-Henri Simon, Maurice Druon, Jochen Schmidt, Uwe Johnson, Kimon Friar, Raymond A. Sokolov.