https://www.nist.gov/publications/crystal-chemistry-and-crystallography-aurivillius-phase-bi5agnb4o18
Crystal Chemistry and Crystallography of the Aurivillius Phase Bi5AgNb4O18 | NIST
Feb 19, 2017 - Bi5AgNb4O18 is a new phase, which was discovered during the phase equilibrium study of the Bi2O3-Ag2
crystal chemistryof theaurivillius phasecrystallographynist