Aristotle, Archimedes, Euclid, and the origin of mechanics: The perspective of historical epistemology. In J. L. Montesinos Sirera (Ed.), Symposium Arquímedes Fundación Canaria Orotava de Historia de la Ciencia (pp. 43–59). http://www.mpiwg-berlin.mpg.de/Preprints/P239.PDF. 1 2 Magnaghi, C. P.; Assis, A. K. T. (2012-05-07). "Calculation of the centre of gravity of the cone utilizing the method of Archimedes".