1976, Chalcogen, Disordered, Transitional

• O-Ti
• Fe-S
• Li-O-V
• Nb-Se
• Na-O-W
• structural properties
• electronic and electrical properties
• magnetic properties
• thermal and thermodynamic properties
• conductivity or resistivity
• disordered
• transitional
• chalcogen
• oxide
• non-disordered
• cubic
• tetragonal
• hexagonal
• trigonal
• orthorhombic