Mielewczyk gryn

• La-Nb-O-Sb
• La-Mg-Nb-O
• La-Nb-O
• Ba-Ce-O-Y-Zr
• Ca-La-Nb-O-Sb
• structural properties
• transitional
• chalcogen
• rare earth
• lanthanoid
• quaternary
• monoclinic
• tetragonal
• orthorhombic