Matteo Motterlini
, Giulio Giorello
in "Proceedings of the Conference. Karl Popper. Philosopher of Science", (edited by M. Alai, G. Tarozzi, S. Mannelli), Rubbettino, pp. 203-216 - 2006
Atti di: Karl Popper, Philosopher of Science, Cesena, 27-30/10/1994.