Supersonic Fe beam source for chromatic aberration-free laser focusing of atomsR. C. M. Bosch, H. C. W. Beijerinck, P. van der Straten and K. A. H. van LeeuwenEur. Phys. J. AP, 18 3 (2002) 221-227DOI: https://doi.org/10.1051/epjap:2002042