Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 2 > 145-149
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 5 > 385-390
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 12 > 1050-1057
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 14 > 1301-1304
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 18 > 1628-1632