Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2014 > 125 > 2 > 824-827
Optik - International Journal for Light and Electron Optics > 2014 > 125 > 11 > 2505-2508
Optik - International Journal for Light and Electron Optics > 2014 > 125 > 14 > 3534-3539
Optik - International Journal for Light and Electron Optics > 2014 > 125 > 16 > 4402-4404
Optik - International Journal for Light and Electron Optics > 2014 > 125 > 19 > 5550-5553