G.  Mazza, Reboleira, A. S. P. S., Gonçalves, F., Aquiloni, L., Inghilesi, A. F., Spigoli, D., Stoch, F., Taiti, S., Gherardi, F., and Tricarico, E., ?A new threat for the groundwater ecosystems: first occurrences of the invasive crayfish Procambarus clarkii in the caves of Europe?, Journal of Cave and Karst Studies, vol. 76, pp. 62?65, 2014.