X-RAY ABSORPTION STUDY OF FREE AND BOUND SULPHUR IN MoS2+x (0 ≤ x ≤ 1) P. BELOUGNE, B. DEROIDE, J.M. ESTEVA, R.C. KARNATAK and J.V. ZANCHETTA J. Phys. Colloques, 48 C9 (1987) C9-1049-C9-1052 DOI: 10.1051/jphyscol:19879190