Vignati, Davide A.L., Roberta Bettinetti, and Aldo Marchetto. 2016. “Long-Term Persistence of Sedimentary Copper Contamination in Lake Orta: Potential Environmental Risks 20 Years After Liming”. Journal of Limnology 75 (s2). https://doi.org/10.4081/jlimnol.2016.1232.