@incollection{Choudhury19,
author = {Pankaj Kumar Choudhury},
title = {Introductory Chapter: Photonic Crystals–Revisited},
booktitle = {Photonic Crystals},
publisher = {IntechOpen},
address = {Rijeka},
year = {2019},
editor = {Pankaj Kumar Choudhury},
chapter = {1},
doi = {10.5772/intechopen.85246},
url = {https://doi.org/10.5772/intechopen.85246}
}