SOFT X-RAY SPECTROSCOPY OF ARGON RECOIL IONS F. FOLKMANN, I. LESTEVEN-VAÏSSE, A. BEN SITEL, M. CHANTEPIE and D. LECLER J. Phys. Colloques, 48 C9 (1987) C9-267-C9-270 DOI: 10.1051/jphyscol:1987946