BEONE, Gian Maria, et al. “Relationship Between Element Concentrations and Body Size in the Lake Maggiore Population of Unio Pictorum Mancus (Mollusca, Bivalvia)”. Journal of Limnology, vol. 70, no. 2, Aug. 2011, pp. 283-92, doi:10.4081/jlimnol.2011.283.