@article {2012,
	title = {Electron guns production quality control},
	journal = {Electrotechnics \& Electronics},
	volume = {47},
	year = {2012},
	pages = {40-43},
	publisher = {The Union of Electronics, Electrical Engineering and Telecommunications},
	chapter = {40},
	address = {Sofia, Bulgaria},
	issn = {0861-4717},
	author = {Ivan Vl{\v c}ek and Martin Zoba{\v c}}
}