1 2 Sebastian Luft (ed.), The Neo-Kantian Reader, Routledge 2015, pp. 461–3.
↑ James R. O'Shea Wilfrid Sellars and His Legacy, Oxford University Press, 2016, p. 4.
↑ Hilary Putnam. Realism with a Human Face. Edited by James Conant. Harvard University Press. 1992. p. xlv.
↑ Edmund Husserl, Logical Investigations, Volume 1, Routledge & Keegan Paul, 2001: Introduction by Dermot Moran, p. lxiv: "Husserl ... visited England in 1922 intent on establishing relations with English philosophers ... He delivered a number of lectures which were attended by Gilbert Ryle..."