Optik - International Journal for Light and Electron Optics
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 11 > 978-985
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 16 > 1453-1457
Optik - International Journal for Light and Electron Optics > 2011 > 122 > 17 > 1588-1593