1. Brand, R.A.: Normos-90—Mössbauer Fitting Program Package. Lab. Angewandte Phys., Universität Duisburg 8 (1994)
2. Stevens, J., Khasanov, A., Miller, J., Pollack, H., Li, Z.: Mössbauer Mineral Handbook. Mössbauer Effect Data Center, Ashville (1998)
3. Casas, L.L., Parcerisa, D., Gomez-Gras, D., Calvet, F., Roig, A., Molins, E.: Mössbauer spectroscopy to study diagenetical processes of red beds and sand dikes in the Valles-Penedés half graben. Hyperfine Interact. (C) 5, 393–396 (2001)
4. Coey, J.M.D.: Mössbauer spectroscopy of silicate minerals. In: Long, G.J. (eds.) Mössbauer Spectroscopy Applied to Inorganic Chemistry, vol. 1, pp. 443–509. Plenum, New York (1984)