An XAS Study of the Semi-Conducting Sulfides M2S3 (M = As, Sb, Bi) J.M. Charnock, K.E.R. England, C.M.B. Henderson, J.F.W. Mosselmans et R.A.D. Pattrick J. Phys. IV France, 7 C2 (1997) C2-1137-C2-1138 DOI: 10.1051/jp4:19972161