3.1.2. SCHUMACHER (Ralph), Perception and Reality from Descartes to the present, Paderborn, Mentis, 2003, 354 p. (Abrégé Perception and Reality).
Voir aussi aux nos 3.1.11, 48, 65, 98 & 3.2.9, 15, 43, 77, 80 et 91.