@article{IUPAC+L03423+2019,
url = {https://doi.org/10.1351/goldbook.L03423},
institution = {International Union of Pure and Applied Chemistry (IUPAC)},
year = {2019},
title = {<i>l</i>, <i>u</i>},
doi = {doi:10.1351/goldbook.L03423},
edition = {3.0.1}
}