Long-term behaviour of iron in clay soils : a study of World War I remains by physico-chemical and electrochemical characterizationE. Pons, L. Uran, S. Joiret, A. Hugot-Le Goff, C. Lemaître and D. DavidRev. Met. Paris, 100 2 (2003) 223-231DOI: https://doi.org/10.1051/metal:2003141