@conference {Zobac_EBT_2003,
	title = {Marking of Welded Pieces Using Continuous or Pulsed Electron Beam},
	booktitle = {Proceedings of the 7th International Conference on Electron Beam Technologies},
	year = {2003},
	pages = {191{\textendash}197},
	publisher = {Bulgarian Academy of Sciencies},
	organization = {Bulgarian Academy of Sciencies},
	address = {Varna},
	author = {Martin Zoba{\v c}},
	editor = {Georgy Mladenov}
}