Władysław Tatarkiewicz, Zarys dziejów filozofii w Polsce (A Brief History of Philosophy in Poland), [in the series:] Historia nauki polskiej w monografiach (History of Polish Learning in Monographs), [volume] XXXII, Kraków, Polska Akademia Umiejętności (Polish Academy of Learning); 1948; pp. 11–12. NOTE: This monograph draws from pertinent sections in earlier editions of the author's Historia filozofii (History of Philosophy).
