Bibliografia

• Pierce, Benjamin (1882). Linear Associative Algebra. Van Nostrand. Digitalizado por University of California Libraries. Págs. 97-229.
• Einstein, Albert (1923). «Geometry and experience», en Sidelights on relativity. P. Dutton., Co.
• Peterson, Ivars. (2001). Mathematical Tourist, New and Updated Snapshots of Modern Mathematics. Owl Books. ISBN 0-8050-7159-8.
• Jourdain, Philip E. B., «The Nature of Mathematics», en The World of Mathematics. Courier Dover Publications. ISBN 0-486-41153-8.
• Waltershausen, Wolfgang Sartorius von (1856, repr. 1965). Gauss zum Gedächtniss. Sändig Reprint Verlag H. R. Wohlwend. ISBN 3-253-01702-8.
• Popper, Karl R. (1995). «On knowledge», en In Search of a Better World: Lectures and Essays from Thirty Years. Routledge. ISBN 0-415-13548-6.
• Ziman, J.M., F.R.S. (1968). Public Knowledge:An essay concerning the social dimension of science. Cambridge University Press.
• Riehm, Carl (August 2002). «The Early History of the Fields Medal», en Notices of the AMS. AMS 49 (7). Págs. 778–782.