Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 14 > 1236-1239
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 20 > 4177-4181
Optik - International Journal for Light and Electron Optics > 2018 > 157 > C > 1397-1404