Batterman, Robert (December 1989). "Book reviews: Olivier Costa de Beauregard: Time, The Physical Magnitude". Philosophy of Science. 56 (4): 710–712. doi:10.1086/289524.
Costa de Beauregard, Olivier; Mattuck, Richard D.; Josephson, Brian; Walker, Evan Harris (26 June 1980). "Parapsychology: An Exchange". The New York Review.