E. S. R. OF Gd3+ IN La2O3 AND ITS SOLID SOLUTIONS WITH CeO2 G. BACQUET, C. BOUYSSET et D. HERNANDEZJ. Phys. Colloques, 37 C7 (1976) C7-204-C7-207DOI: https://doi.org/10.1051/jphyscol:1976747