Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 2 > 118-121
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 3 > 228-234
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 3 > 207-210
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 7 > 563-568
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 14 > 1275-1278