OPTICAL ABSORPTION OF SOLID NEON AND ARGON IN THE SOFT X-RAY REGION R. HAENSEL, G. KEITEL, N. KOSUCH, U. NIELSEN et P. SCHREIBER J. Phys. Colloques, 32 C4 (1971) C4-236-C4-240 DOI: 10.1051/jphyscol:1971444