Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2010 > 121 > 8 > 739-749
Optik - International Journal for Light and Electron Optics > 2010 > 121 > 9 > 778-782
Optik - International Journal for Light and Electron Optics > 2010 > 121 > 23 > 2159-2161