Conference: Seminar on the preparation and standardization of isotopic targets and foils, Harwell (United Kingdom), 20-21 Oct 1965; Other Information: In: Proceedings of the seminar on the preparation and standardization of isotopic targets and foils, held at A.E.R.E., Harwell, October 20-21, 1965, Smith, M.L. (ed.) 175 p.