1. Adinolfi Falcone, R., Falgiani, A., Petitta, M., Tallini, M., 2006. Characteristics of Gran Sasso INFN lab groundwater inferred from spot data (1996–1998 period) to fine-tune the conceptual model of water–rock interaction in carbonate aquifer. Internal Report LNGS/GEO-01, p. 42.
2. ANAS-COGEFAR, 1980. Gran Sasso, il traforo autostradale. Ed. Grafiche Sefra, Milano, Italy.
3. Mechanism of radon release in rock matrices and entry in groundwaters;Andrews;Trans. Int. Miner. Metall.,1972
4. Geochemistry, Groundwater and Pollution;Appelo,1993
5. Water storage and transfer in the epikarst of karstic systems during high flow periods;Aquilina;J. Hydrol.,2006