Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 21 > 5177-5180
Optik - International Journal for Light and Electron Optics > 2015 > 126 > 7-8 > 834-837
Optik - International Journal for Light and Electron Optics > 2016 > 127 > 11 > 4635-4638