Metal accumulation in mosses across national boundaries: Uncovering and ranking causes of spatial variation. Environmental Pollution. 151:377-388.. 2008.
First thorough identification of factors associated with Cd, Hg and Pb concentrations in mosses sampled in the European Surveys 1990, 1995, 2000 and 2005. Journal of Atmospheric Chemistry. 63:109-124.. 2009.
Are cadmium, lead and mercury concentrations in mosses across Europe primarily determined by atmospheric deposition of these metals? Journal of Soils and Sediments. 10:1572-1584.. 2010.
Mosses as biomonitors of atmospheric heavy metal deposition: Spatial patterns and temporal trends in Europe. Environmental Pollution. 158:3144-3156.. 2010.