1. Barazzuoli P (1993) Il Clima. In: Giusti F (ed) La storia naturale della Toscana meridionale. Amilcare Pizzi Editore, Milano, pp 141–171
2. Bargagli Petrucci G (1916) Studi sulla Flora Microscopica della Regione Boracifera Toscana. Nuovo Giorn Bot Ital NS 23:171–184
3. Bonini I, Casini F, Chiarucci A, De Dominicis V (2005) The bryophyte flora of the geothermal field of Sasso Pisano (Pisa, Italy). Cryptogam, Bryol, Lichenol 26:291–299
4. Broady P, Given D, Greenfield L, Thompson K (1987) The biota and environment of fumaroles on Mt Melbourne, northern Victoria Land. Polar Biol 7:97–113
5. Brock TD (1985) Life at High Temperature. Science 230:132–138