Scott Higgins
Weyhenmeyer, Gesa A., Jens Hartmann, Dag O. Hessen, Jiří Kopáček, Josef Hejzlar, Stéphan Jacquet, Stephen K. Hamilton, et al. 2019. “Widespread Diminishing Anthropogenic Effects On Calcium In Freshwaters”. Scientific Reports 9 (1). Springer Science and Business Media LLC. doi:10.1038/s41598-019-46838-w.