The electron affinities of O, Si, and S revisited with the photodetachment microscope C. Blondel, W. Chaibi, C. Delsart, C. Drag, F. Goldfarb and S. Kröger Eur. Phys. J. D, 33 3 (2005) 335-342 Published online: 12 May 2005 DOI: 10.1140/epjd/e2005-00069-9