@conference {proc021_2016_Zouros,
	title = {The Optimization of a 4-Element Input Lens on a Hemispherical Deflector Analyzer Using SIMION},
	booktitle = {Ninth International Conference on Charged Particle Optics},
	volume = {21(S4)},
	year = {2015},
	pages = {148},
	doi = {10.1017/S143192761501329X},
	author = {T J M Zouros and A. Kanellakopoulos and I. Madesis and A. Dimitriou and M. Fernandez-Martin and G. Martinez and Mertzimekis, T. J.}
}
