Feifičová, D., Šnajdr, J., Siglová, M., Čejková, A., Masák, J., & Jirků, V. (2005). Influence of Humic Acids on the Growth of the Microorganisms Utilizing Toxic Compounds (Comparison between Yeast and Bacteria). CHIMIA, 59(10), 749. https://doi.org/10.2533/000942905777675705