High-resolution X-ray spectroscopy of Procyon by Chandra and XMM-Newton A. J. J. Raassen, R. Mewe, M. Audard, M. Güdel, E. Behar, J. S. Kaastra, R. L. J. van der Meer, C. R. Foley and J.-U. Ness A&A, 389 1 (2002) 228-238 Published online: 14 June 2002 DOI: 10.1051/0004-6361:20020529