EXAFS CHARACTERISATION OF POORLY CRYSTALLINE DEPOSITS FROM BIOLOGICAL SYSTEMS IN THE PRESENCE OF HIGHLY CRYSTALLINE MINERAL D. W.L. HUKINS, A. J. COX et J. E. HARRIESJ. Phys. Colloques, 47 C8 (1986) C8-1181-C8-1184DOI: https://doi.org/10.1051/jphyscol:19868231