2006

Menhard, C.G.  Fast measurements of important electron beam parameters by variation of beam focusing. Proceedings of the 8th International Conference on Electron Beam Technologies, Varna: Bulgarian Academy of Sciencies, 2, 2006, s. 11–12.
[Anonym]  Proceedings of the 8th International Conference on Electron Beam Technologies. Proceeding of the EBT 2006, Varna: Bulgarian Academy of Sciencies, 2006.

2003

Bakish  Electron beam melting 1995 to 2005. Proceedings of the 7th International Conference on Electron Beam Technologies, Varna: Bulgarian Academy of Sciencies, 2003, s. 233–240.
Zobač, M.  Marking of Welded Pieces Using Continuous or Pulsed Electron Beam. Proceedings of the 7th International Conference on Electron Beam Technologies, Varna: Bulgarian Academy of Sciencies, 2003, s. 191–197.
Löwer, T.  Analysis, visualization and accurate description of an electron beam for high repeatability of industrial production processes. Proceedings of the 7th International Conference on Electron Beam Technologies, Varna: Bulgarian Academy of Sciencies, 2003, s. 45–50.
Dupák, J. - Michalička, P. - Ustohal, V. - Kuchyňka, R.  Electron beam welding of stainless steel with tungsten, tantalum and molybdenum. Proceedings of the 7th International Conference on Electron Beam Technologies, Varna: Bulgarian Academy of Sciencies, 2003, s. 198–201.
von Dobeneck, D.  Economizing electron beam welding for high volume production. Proceedings of the 7th International Conference on Electron Beam Technologies, Varna: Bulgarian Academy of Sciencies, 2003, s. 185-190.
Zenker, R. - Buchwalder, A. - Spies, H.J.  New electron beam technologies for surface treatment. Proceedings of the 7th International Conference on Electron Beam Technologies, Varna: Bulgarian Academy of Sciencies, 2003, s. 202–209.
Dora, J. - Felba, J. - Sielanko, W.  A new generation of power supplies for electron beam welding machines. Proceedings of the 7th International Conference on Electron Beam Technologies, Varna: Bulgarian Academy of Sciencies, 2003, s. 631–632.
Mladenov, G.  Proceedings of the 7th International Conference on Electron Beam Technologies. Proceeding of the EBT 2003, Varna: Bulgarian Academy of Sciencies, 2003.