German, Andy (1 November 2013). "What is 'First Philosophy'? Comments on Richard Velkley's Heidegger, Strauss, and the Premises of Philosophy". History of European Ideas. 39 (6): 899–915. doi:10.1080/01916599.2013.765080. ISSN0191-6599. S2CID144097161.
German, Andy (1 November 2013). "What is 'First Philosophy'? Comments on Richard Velkley's Heidegger, Strauss, and the Premises of Philosophy". History of European Ideas. 39 (6): 899–915. doi:10.1080/01916599.2013.765080. ISSN0191-6599. S2CID144097161.
German, Andy (1 November 2013). "What is 'First Philosophy'? Comments on Richard Velkley's Heidegger, Strauss, and the Premises of Philosophy". History of European Ideas. 39 (6): 899–915. doi:10.1080/01916599.2013.765080. ISSN0191-6599. S2CID144097161.