Structural investigation of temperature-induced phase transitions in HfV2O7 C. Turquat, C. Muller, E. Nigrelli, C. Leroux, J.-L. Soubeyroux and G. Nihoul Eur. Phys. J. AP, 10 1 (2000) 15-27 Published online: 15 April 2000 DOI: 10.1051/epjap:2000115