P. M. S. Hacker

with Baker G. P. (2003). Functions in Begriffsschrift. Synthese, 135 (3), 273-297. https://doi.org/10.1023/A:1023509611120.

with P. M. (). The relevance of Wittgenstein's philosophy of psychology to the psychological sciences. Deutsches Jahrbuch Philosophie, 3, 205-223.