(1991). Vacuum, electron and ion technologies: Papers from the sixth Bulgarian Summer School, 21 - 26 September 1989, Varna, Bulgaria. Pergamon Press.
Chicago-Zitierstil (17. Ausg.)Vacuum, Electron and Ion Technologies: Papers from the Sixth Bulgarian Summer School, 21 - 26 September 1989, Varna, Bulgaria. Oxford u.a: Pergamon Press, 1991.
MLA-Zitierstil (9. Ausg.)Vacuum, Electron and Ion Technologies: Papers from the Sixth Bulgarian Summer School, 21 - 26 September 1989, Varna, Bulgaria. Pergamon Press, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.