1. Decreto Legislativo 3 agosto 2007 n. 152, G.U. 13/09/07 n. 213, Suppl. Ord. n.194.
2. Porrini C., Celli G., Radeghieri P., 1998. Monitoring of pesticides through the use of honeybees as bioindicators of the Emilia-Romagna coastline (1995-1996). Annali dei Chimici, 88, 243-252.
3. Porrini C., Ghini S., Girotti S., Sabatini A.G., Gattavecchia E., Celli G., 2002. Use of honeybees as bioindicators of environmental pollution in Italy. In: Honey bees: Estimating the Environmental Impact of Chemicals, J. Devillers and M.-H. Pham-Delègue (Eds). Taylor & Francis: London, 186-247.
4. Visciano P., Perugini M., Conte F., Amorena M., 2008. Polycyclic aromatic hydrocarbons in farmed rainbow trout (Oncorhynchus mykiss) processed by traditional flue gas smoking and by liquid smoke flavourings. Food and Chemical Toxicology, 46, 1409-1413.