Ryba romanowski

• Al-Ca-Nd-O
• Lu-O-Tm-V
• Al-La-O-Sr
• Gd-O-Tm-V
• O-Tm-V-Y
• optical properties
• electronic and electrical properties
• crystal electric field
• structural properties
• luminescence
• rare earth
• lanthanoid
• chalcogen
• quaternary
• transitional
• tetragonal
• orthorhombic
• monoclinic
• cubic
• hexagonal