Crystal Structure of Bi12GeO20: Reexamination of the Ge-site Vacancy Model, Eisuke Suzuki, Nobuo Iyi and Kenji Kitamura, J. Korean Phys.Soc. 32,173 doi:10.3938/jkps.32.173
Tsuguo Fukuda, Valery I. Chani: Shaped Crystals Growth by Micro-Pulling-Down Technique. Springer Science & Business Media, 2007, ISBN 978-3-540-71295-4, S.118 (eingeschränkte Vorschau in der Google-Buchsuche).
Kiyotaka Wasa: Handbook of Sputter Deposition Technology Fundamentals and Applications for Functional Thin Films, Nano-materials and MEMS. William Andrew, 2012, ISBN 1-4377-3483-9, S.400 (eingeschränkte Vorschau in der Google-Buchsuche).