Ul4 compound : determination of high temperature phase transitions from electrical conductivity and calorimetric measurementsJean-Pierre Bros, Yvonne Fouque, marcelle Gaune-Escard, Wlodzimierz Szczepaniak and Alexander BogaczJ. Chim. Phys., 79 (1982) 715-718DOI: https://doi.org/10.1051/jcp/1982790715