Predeductive Reasoning
V. Peckhaus, in: C. Cellucci, P. Pecere (Eds.), Demonstrative and Non-Demonstrative Reasoning in Mathematics and Natural Sciences. Workshop University of Rome ‘La Sapienza’, Rome, Villa Mirafiori, 16-17 June 2005, Edizioni dell’Università degli Studi di Cassino, Rom, 2006, pp. 9–25.