00539nam 2200181z- 450 9910557629403321(CKB)5400000000045120(EXLCZ)99540000000004512020220406c2019uuuu -u- -engPhotonic Crystals : A Glimpse of the Current Research TrendsIntechOpen1-83962-268-7 Photonic Crystals BOOK9910557629403321Photonic Crystals - A Glimpse of the Current Research Trends1923592UNINA