Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 14 > 1943-1947
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 14 > 1957-1960
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 17 > 2784-2786
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 20 > 4421-4424
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 23 > 5906-5913