[1]
R. Germishuys and R. Diamond, “Nitrogen isotopes of Eichhornia crassipes (water hyacinth) confirm sewage as leading source of pollution in Hartbeespoort Reservoir, South Africa”, S. Afr. J. Sci., vol. 118, no. 7/8, Jul. 2022, doi: 10.17159/sajs.2022/11098.