@incollection{Kitagawa18,
author = {Yasutaka Kitagawa and Toru Saito and Kizashi Yamaguchi},
title = {Approximate Spin Projection for Broken-Symmetry Method and Its Application},
booktitle = {Symmetry (Group Theory) and Mathematical Treatment in Chemistry},
publisher = {IntechOpen},
address = {Rijeka},
year = {2018},
editor = {Takashiro Akitsu},
chapter = {7},
doi = {10.5772/intechopen.75726},
url = {https://doi.org/10.5772/intechopen.75726}
}