Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 12 > 1254-1259
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 18 > 3611-3613
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 20 > 4315-4318
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 24 > 6983-6986