RAVERA, O. et al. 2007. Seasonal variations in metal content of two Unio pictorum mancus (Mollusca, Unionidae) populations from two lakes of different trophic state. Journal of Limnology. 66, 1 (Feb. 2007), 28–39. DOI:https://doi.org/10.4081/jlimnol.2007.28.