@article{IUPAC+HT07053+2019,
url = {https://doi.org/10.1351/goldbook.HT07053},
institution = {International Union of Pure and Applied Chemistry (IUPAC)},
year = {2019},
title = {hyperpolarizability (of <i>n</i>th order)},
doi = {doi:10.1351/goldbook.HT07053},
edition = {3.0.1}
}