1. Albertano P (1995) Deterioration of Roman hypogea by epilithic cyanobacteria and microalgae. In: First International Congress on Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin, Catania, Siracusa, Italy, pp 1303–1308
2. Alvarez A, Argemi M, Laorden V, Domenech X, Verbal J, Navarro A, Prada JL, Puges M, Rocabayera R, Vilaseca L (1994) Physical, chemical and biological weathering detected in the romanic portal of the Sant Quirze de Pedret church (XIIc.). In: Fassina V, Ott H, Zezza F (eds) Proceedings of the 3rd International Symposium on the Conservation of Monuments in the Mediterranean Basin. Soprintendenza ai Beni Artistici e Storici di Venezia, Venice, pp 365–369
3. Anzalone B, Iberite M, Lattanzi E (2010) La flora vascolare del Lazio. Inf Bot Ita 42(1):187–317
4. Ariño X, Saiz-Jimenez C (1996) Colonization and deterioration processes in Roman mortars by cyanobacteria, algae and lichens. Aerobiologia 12(1):9–18
5. Bagnouls F, Gaussen H (1963) Os climas Biológicos e sua classificac ̧ão. Bol Geogr 173:545–566