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Optik - International Journal for Light and Electron Optics > 2013 > 124 > 21 > 4721-4724
Science China Physics, Mechanics & Astronomy > 2013 > 56 > 11 > 2098-2103
Optik - International Journal for Light and Electron Optics > 2013 > 124 > 21 > 4721-4724
Science China Physics, Mechanics & Astronomy > 2013 > 56 > 11 > 2098-2103