Kemmler sack, Quaternary

• Bi-Fe-O-Sr
• Ba-Cu-O-Y
• Fe-O-Pb-Sr
• Bi-Fe-Nb-O
• Bi-Fe-O-Pt
• structural properties
• magnetic properties
• electronic and electrical properties
• optical properties
• Moessbauer spectra
• chalcogen
• quaternary
• transitional
• alkaline
• oxide
• cubic
• tetragonal
• trigonal
• orthorhombic
• hexagonal