1. Balarin M, Zetsche A (1962) Bestimmung der Aktivierungsenergie für die Beweglichkeit von Gitterdefecten durch zeitlineares Aufheizen. Phys Status Solidi (a), 2:1670?1681
2. Belaev RA (1980) Beryllium oxide. Atomizdat, Moscow (in Russian), p 221
3. Bräunlich P (1968) Thermoluminescence and thermally stimulated current-tools for the determination of trapping parameters; Thermoluminescence of geological materials. McDougall DJ (ed). Academic Press, London New York
4. Drenckhan J, Gross H, Glaefeke H (1970) The mechanism of exoelectrons emission after excitation with electrons. Phys Status Solidi (A) 2:51?54
5. Holzapfel G (1976) The evolution of volume concepts to describe exoelectron emission. Proceedings of the 5th international symposium on exoelectron emission and dosimetry, Svikov, pp 19?34