1. L. Dunoyer: Compt. Rend.152, 594 (1911); Le Radium8, 142 (1911)
2. D. Herschbach (ed.): ?In memoriam Otto Stern?, special issue of Z. Phys. D10, No. 2/3 (1988)
3. N.F. Ramsey:Molecular Beams (Oxford Univ. Press, London 1963)
4. E.g., D.A. Jackson, H. Kuhn: Proc. R. Soc.A 148, 335 (1935)
5. D.A. Jackson, H. Kuhn: Proc. R. Soc.A 165, 303 (1938)