References Cited
- Alstrup, V. and Hansen, E. S., 1977: Three species of lichens tolerant of high concentrations of copper. Oikos, 29: 290–293.
- Bjørlykke, B., 1939: Vegetasjonen på olivinsten på Sunmøre. Undersøkelser foretatt somrene 1934–36. Nytt Magasin for Naturvidenskapene, 79: 51–126.
- Böcher, J., 1976: Population studies on Nysius groenlandicus (Zett.) (Heteroptera: Lygaeidae) in Greenland with particular reference to climatic factors, especially the snow cover. Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening, 139: 61–89.
- Böcher, T. W., 1938: Biological distributional types in the flora of Greenland. Meddelelser om Grønland, 106(2): 1–336.
- Callaghan, T. V. and Collins, N. J., 1976: Strategies of growth and population dynamics of tundra plants. 1. Introduction. Oikos, 27: 383–388.
- Jackson, M. L., 1958: Soil Chemical Analysis. Englewood Cliffs, N.J.: Prentice-Hall. 498 pp.
- Køie, M., 1968: Planternes levevilkår. Økologi. In Nørrevang, A. and Meyer, T. J. (eds.), Danmarks Natur, Vol. 2. Copenhagen: Politikens Forlag, 151–246.
- McLean, E. O., 1965: Aluminum. In Black, C. A. (ed.), Methods of Soil Analysis, part 2. Madison, Wisc.: American Society of Agronomy, 978–998.
- Petersen, P. M., 1977: Investigations on the ecology and phenology of macromycetes in the Arctic. Meddelelser om Grønland, 199: 1–72.
- Petersen, P. M., 1981: Variation in the population structure of Polygonum viviparum L. in relation to certain environmental conditions. Meddelelser om Grønland, Bioscience, 4: 1–19.
- Proctor, J. and Johnston, W. R., 1977: Lychnis alpina L. in Britain. Watsonia, 11: 199–204.
- Rune, O., 1953: Plant life on serpentine and related rocks in north of Sweden. Acta Phytogeographica Suecica, 31: 1–139.
- Siegel, S., 1956: Nonparametric Statistics. Tokyo: McGraw-Hill Kogakusha Ltd. 312 pp.
- Söyrinki, N., 1938: Studien über die generative und vegetative Vermehrung der Samenpflanzen in der alpinen Vegetation Petsamo-Lapplands. I. Allgemeiner Teil. Annales Botanici Societatis Zoologicae-Botanicae Fennicae Vanamo, 11: 1–323.
- Tanner, V., 1930: Eine Ass. v. Viscaria alpina-Anthelia nivalis-Oligotrichum incurvum. Memoranda Societatis pro Fauna et Flora Fennica, 6: 145–148.
- Viro, P. J., 1955: Use of Ethylenediaminetetraacetic acid in soil analysis. Soil Science, 79: 459–465.
- Warming, G., 1921: Structure and biology of Arctic flowering plants. Caryophyllaceae. Meddelelser om Grønland, 37: 219–342.