Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2012 > 123 > 12 > 1082-1086
Optik - International Journal for Light and Electron Optics > 2012 > 123 > 18 > 1609-1612
Optik - International Journal for Light and Electron Optics > 2012 > 123 > 23 > 2113-2115