Phase transitions and dielectric relaxations in superionic protonic conductor HUP (H3OUO2PO4.3H2O) in the broad frequency range (10-2-1010 Hz) J.C. Badot, A. Fourrier-Lamer, N. Baffier et Ph. ColombanJ. Phys. France, 48 8 (1987) 1325-1336DOI: https://doi.org/10.1051/jphys:019870048080132500