Johansson, M., Suutari, R.
, Bak, J., Lövblad, G., Posch, M., Simpson, D., Tuovinen, J.-P. & Tørseth, K. (2001).
The Importance of Nitrogen Oxides for the Exceedance of Critical Thresholds in the Nordic Countries.
Water, Air and Soil Pollution,
130, 1739-1744.
Bay, C., Philipp, M.
, Strandberg, B., Born, E. W. (Ed.) & Böcher, J. (Ed.) (2001).
Vascular Plants. In E. W. Born & J. Böcher (Eds.),
The Ecology of Greenland (pp. 237-257). Nuuk: Ilinniusiorfik.