Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 3 > 250-254
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 3 > 261-264
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 6 > 554-556
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 18 > 3250-3253
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 21 > 5254-5258