@conference {DupakL_EBT_2009,
	title = {Planar Heating Element Adjusted by Electron Beam Micromachining},
	booktitle = {Proceedings of the 9th International Conference on Electron Beam Technologies},
	year = {2009},
	pages = {82{\textendash}84},
	publisher = {Bulgarian Academy of Sciencies},
	organization = {Bulgarian Academy of Sciencies},
	address = {Varna},
	issn = {0861-4717},
	author = {Dupak, L. and Dup{\'a}k, Jan},
	editor = {Georgy Mladenov}
}