A high resolution spectroscopic observation of CAL 83 with XMM-Newton/RGS F. Paerels, A. P. Rasmussen, H. W. Hartmann, J. Heise, A. C. Brinkman, C. P. de Vries and J. W. den Herder A&A, 365 1 (2001) L308-L311 Published online: 15 January 2001 DOI: 10.1051/0004-6361:20000069