. 2001.
. 2003.
Nutrient cycling in a strongly acidified mesotrophic lake. Limnology and Oceanography 49: 1202-1213.
. 2004. . 2017.
. 2018.
Solar Radiation as the Likely Cause of Acid-Soluble Rare-Earth Elements in Sediments of Fresh Water Humic Lakes. Environ. Sci. Technol. 54: 1545-1553.
. 2020.