@incollection{Altaf18,
author = {Ataf Ali Altaf and Samia Kausar and Amin Badshah},
title = {Spectral Calculations with DFT},
booktitle = {Density Functional Calculations},
publisher = {IntechOpen},
address = {Rijeka},
year = {2018},
editor = {Gang Yang},
chapter = {5},
doi = {10.5772/intechopen.71080},
url = {https://doi.org/10.5772/intechopen.71080}
}