1956, Chalcogen

• O-W
• Cd-Na-O-S
• Li-O-S
• Cd-O-S
• K-O-S
• structural properties
• phase transitions
• phase diagram
• electronic and electrical properties
• chalcogen
• transitional
• ternary
• alkali
• non-disordered
• cubic
• orthorhombic
• hexagonal
• trigonal
• monoclinic