1. Ambrosetti P, Carraro F, Deiana G, Dramis F (1982) Il sollevamento dell’Italia centrale tra il Pleistocene inferiore e il Pleistocene medio. Contributi Conclusivi per la Realizzazione della Carta Neotettonica d’Italia, CNR-PFG pubbl., vol 513, pp 219–223
2. APAT (2005) Italy 1:1.250.000 Bouguer Anomaly Map
3. Aringoli D, Gentili B, Materazzi M, Pambianchi G (2010a) Deep-seated gravitational slope deformations in active tectonics areas of the Umbria-Marche Apennine (Central Italy). Geogr Fis Dinam Quat 33:127–140
4. Aringoli D, Gentili B, Materazzi M, Pambianchi G (2010b) Mass movements in the Adriatic Central Italy: activation and evolutive control factors. In: Werner ED, Friedman HP (eds) Landslides: causes, types and effects. Nova Science Publishers Inc., New York, pp 1–71
5. Bartolini C (1980) Su alcune superfici sommitali dell’Appenino Settentrionale. Geogr Fis Dinam Quat 3:42–60