Berkel

• Al-Ba-O
• Ho-Ni-O-Ru
• Al-Ba-O-Ru
• La-Ni-O-Ru
• Eu-O-Ru
• structural properties
• phase diagram
• phase transitions
• chalcogen
• oxide
• transitional
• non-disordered
• rare earth
• monoclinic
• hexagonal
• trigonal
• tetragonal