1. Bancroft, G.M. 1973. Mössbauer Spectroscopy: An Introduction for Inorganic Chemists and Geochemists. McGraw-Hill, London.
2. Bancroft, G.M. 1979. Mössbauer spectroscopic studies of the chemical state of iron in silicate minerals. J. Phys. (Paris) Colloq. C2
40, 464–471.
3. Bauminger, E.R., Ben-Dor, L., Feiner, I., Fischbein, E., Nowik, I. and Ofer, S. 1977. Mössbauer effect studies of β-Fe2O3. Physica
86-88B, 910–912.
4. Besson, G., Bookin, A.S., Dainyak, L.G., Rautureau, M., Tsipursky, S.I., Tchoubar, C. and Drits, V.A. 1983. Use of diffraction and Mössbauer methods for the structural and crystallochemical characterisation of nontronites. J. Appl. Cryst.
16, 374–383.
5. Carlson, L. and Schwertmann, U. 1980. Natural occurrence of feroxyhite (δ’-FeOOH). Clays Clay Minerals
28, 272–280.