Prony (1805), "Report of a method of measuring the initial Velocity of Projectiles discharged from Fire-arms, both horizontally and with different Elevations, made to the Physical and Mathematical Class of the National Institute", in Nicholson, William (ed.), A Journal of Natural Philosophy, Chemistry and the Arts, vol. XI, London at page 42 abridged from Journal des Mines No 92 p. 117, May 1804.