The Armstrong experiment revisited Elmar C. Fuchs, Adam D. Wexler, Astrid H. Paulitsch-Fuchs, Luewton L.F. Agostinho, Doekle Yntema and Jakob Woisetschläger Eur. Phys. J. Special Topics, 223 5 (2014) 959-977 Published online: 08 August 2013 DOI: 10.1140/epjst/e2013-01924-x