W.E. Abraham, "Disentangling the Cogito", Mind 83:329 (1974)
Z. Boufoy-Bastick, Introducing 'Applicable Knowledge' as a Challenge to the Attainment of Absolute Knowledge , Sophia Journal of Philosophy, VIII (2005), pp 39–52.
R. Descartes (translated by John Cottingham), Meditations on First Philosophy, in The Philosophical Writings of Descartes vol. II (edited Cottingham, Stoothoff, and Murdoch; Cambridge University Press, 1984) ISBN 0-521-28808-8
G. Hatfield, Routledge Philosophy Guidebook to Descartes and the Meditations (Routledge, 2003) ISBN 0-415-11192-7
B. Williams, Descartes, The Project of Pure Enquiry (Penguin, 1978)
