Pressure-induced americium valence fluctuations revealed by electrical resistivityA. V. Kolomiets, J.-C. Griveau, S. Heathman, A. B. Shick, F. Wastin, P. Faure, V. Klosek, C. Genestier, N. Baclet and L. HavelaEPL, 82 5 (2008) 57007DOI: https://doi.org/10.1209/0295-5075/82/57007