FIORE A., MARTIMUCCI V., PARISE M. & SAMMARCO M., 2012, Artificial caves of Apulia, a poorly exploited cultural heritage, 7th International Symposium ProGEO on the Conservation of the Geological Heritage, pp. 32–32, Bari, 24-28 September 2012,
URL: http://www.cnr.it/prodotto/i/192343

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