Measurement of the three-dimensional velocity distribution of Stark-decelerated Rydberg atoms E. Vliegen, P. A. Limacher and F. Merkt Eur. Phys. J. D, 40 1 (2006) 73-80 Published online: 28 April 2006 DOI: 10.1140/epjd/e2006-00095-1