Article Green, Christopher D. (2009)
The Curious Rise and Fall of Experimental Psychology in Mind. History of the Human Sciences (pp. 37-57). (/isis/citation/CBB000953747/) unapi

Article Preti, Consuelo (2008)
On the Origins of the Contemporary Notion of Propositional Content: Anti-Psychologism in Nineteenth-Century Psychology and G. E. Moore's Early Theory of Judgment. Studies in History and Philosophy of Science (p. 176). (/isis/citation/CBB000930756/) unapi

Chapter Valentine, Elisabeth R. (2001)
G. F. Stout's Philosophical Psychology. In: The Dawn of Cognitive Science: Early European Contributors (p. 209). (/isis/citation/CBB000102706/) unapi