Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2014 > 125 > 2 > 675-678
Optik - International Journal for Light and Electron Optics > 2014 > 125 > 3 > 965-967
Optik - International Journal for Light and Electron Optics > 2014 > 125 > 3 > 1164-1166
Optik - International Journal for Light and Electron Optics > 2014 > 125 > 8 > 1908-1913
Optik - International Journal for Light and Electron Optics > 2014 > 125 > 14 > 3697-3701