1. Buse A, Norris D, Harmens H, Büker P, Ashenden T, Mills G (eds) (2003) Heavy Metals in European Mosses: 2000/2001 Survey. CEH Bangor, UK, p 45
2. Clymo RS (1963) Ion exchange in Sphagnum and its relation to bog ecology. Ann Bot NS 27:309–324
3. Dafis S, Papastergiadou E, Georghiou K, Babalonas D, Georgiadis T, Papageorgiou M, Lazaridou T, Tsiaoussi V (1996) Directive 92/43/EEC The Greek “Habitat” Project NATURA 2000: an overview. Life Contract B4 -3200/94/756, Commission of the European Communities DG XI, The Goulandris Natural History Museum, Greek Biotope/Wetland Centre, p 917
4. Grodzińska K, Szarek-Łukaszewska G (2001) Response of mosses to the heavy metal deposition in Poland – an overview. Environ Pollut 114:443–451. doi: 10.1016/S0269-7491(00)00227-X
5. Harmens H, Norris DA, Koerber GR, Buse A, Steinnes E, Rühling Å (2007) Temporal trends in the concentration of arsenic, chromium, copper, iron, nickel, vanadium and zinc in mosses across Europe between 1990 and 2000. Atmos Environ 41:6673–6687. doi: 10.1016/j.atmosenv.2007.03.062