A NEW COMPOUND IN THE TERNARY SYSTEM, Li2O-TiO2-Nb2O5 S. SHIMADA, C. KAWAI, K. KODAIRA et T. MATSUSHITA J. Phys. Colloques, 47 C1 (1986) C1-467-C1-472 DOI: 10.1051/jphyscol:1986170