References Cited
- Åhman, R., 1977: Palsar i Nordnorge. En studie av palsars morfologi, utbredning och klimatiska forutsattningar i Finnmarks och Troms fylke. Meddelanden fran Lunds Universitets Geografiska Institution. Avhandlingar LXXVIII, Lund. 165 pp.
- Bergmann, B., 1972: Um rústir á húnvetnskum heidum. Náttú-rufrædingurinn, 42, 190–98. (On palsas on the heaths of Húnavatnssýsla county.)
- Dingman, S. L. and Koutz, F. R., 1974: Relations among vegetation, permafrost, and potential insolation in central Alaska. Arctic and Alpine Research, 6: 37–42.
- Harris, S. A., 1986: Permafrost distribution, zonation and stability along the Eastern Ranges of the Cordillera of North America. Arctic, 39: 29–38.
- Landmælingar íslands, 1971: Thjórsárver. Landslag og gróôur (Icelandic Geodetic Survey. Thjórsarver. Topography and vegetation.)
- Jónsson, M., 1978: Vedurfar í Thjórsárverum. OS ROD 7804, Orkustofnun, Reykjavik. 10 pp. (The climate in Thjórsárver. With English summary.)
- Kingsbury, C. M. and Moore, T. R., 1987: The freeze-thaw cycle of a subarctic fen, Northern Quebec, Canada. Arctic and Alpine Research, 19: 289–95.
- Price, L. W., 1971: Vegetation, microtopography, and depth of active layer on different exposures in subarctic alpine tundra. Ecology, 52: 638–47.
- Seppälä, M., 1980: Stratigraphy of a silt-cored palsa, Atlin region, British Columbia, Canada. Arctic, 33: 357–65.
- Seppalä, M., 1982: An experimental study of the formation of palsas. Proceedings of the Fourth Canadian Permafrost Conference, Calgary, Alberta, March 2-6 1981. Ottawa: National Research Council Canada, 36–42.
- Seppälä, M., 1986: The origin of palsas. Geografiska Annaler, 68A: 141–47.
- Smith, M. W., 1975: Microclimatic influences on ground temperatures and permafrost distribution, Mackenzie Delta, Northwest Territories. Canadian Journal of Earth Sciences, 12: 1421–1438.
- Smith, M. W. and Riseborough, D. W., 1983: Permafrost sensitivity to climatic change. Permafrost: Fourth International Conference. Proceedings, Washington, D.C.: National Academy Press, 1178–1183.
- Steindórsson, S., 1967: Um hálendisgródur íslands, 3. Flóra, 4: 49–93. (On the vegetation of the central highland of Iceland, 3. With English summary.)
- Systat for Windows, version 5 edition. Systat Inc., Evanston, II., 1992.
- Thórhallsdóttir, T. E., 1994: áhrif midlunarlóns á gródur og jard-veg í Thjórsárverum. Li'ffrædistofnun háskólans. 135 pp. (The effects of a hydroelectric reservoir on vegetation and soil in Thjórsárver. With English summary.)
- Thórhallsdóttir, T. E., 1996: Tundra ecosystems in Iceland. In Wielgolaski, F. E. (ed.), Tundra Ecosystems of the World. Amsterdam: Elsevier, in press.
- Viereck, L. A. and Lev, D. J., 1983: Long-term use of frost tubes to monitor the annual freeze-thaw cycle in the active layer. Permafrost: Fourth International Conference Proceedings, Washington, D.C.: National Academy Press, 1309–1314.
- Washburn, A. L., 1979: Geocryology. A Survey of Periglacial Processes and Environments. London: Edward Arnold.
- Williams, P. J. and Smith, M. W., 1989: The Frozen Earth: Fundamentals of Geocryology. Cambridge: Cambridge University Press. 306 pp.
- Zoltai, S. C., 1972: Palsas and peat plateaus in central Manitoba and Saskatchewan. Canadian Journal of Forest Research, 2: 291–302.