CANTONATI, M., and H. LANGE-BERTALOT. “Diatom Monitors of Close-to-Pristine, Very-Low Alkalinity Habitats: Three New Eunotia Species from Springs in Nature Parks of the South-Eastern Alps”. Journal of Limnology, vol. 70, no. 2, Aug. 2011, pp. 209-21, doi:10.4081/jlimnol.2011.209.