Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 10 > 883-886
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 20 > 4505-4508
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 21 > 4780-4783
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 21 > 4725-4728
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 24 > 6743-6745