@article{IUPAC+A00075+2025,
url = {https://doi.org/10.1351/goldbook.A00075},
institution = {International Union of Pure and Applied Chemistry (IUPAC)},
year = {2025},
title = {acid–base indicator},
doi = {doi:10.1351/goldbook.A00075},
edition = {5.0.0}
}