Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2012 > 123 > 1 > 21-25
Optik - International Journal for Light and Electron Optics > 2012 > 123 > 1 > 26-29
Optik - International Journal for Light and Electron Optics > 2012 > 123 > 8 > 711-714
Optik - International Journal for Light and Electron Optics > 2012 > 123 > 10 > 870-874