Muster, S., Boike, J., Bolton, W., Grüber, M., Langer, M., Piel, K., Sachs, T., Stoof, G., Westermann, S. (2008): Monitoring permafrost patterned ground with small-formst aerial photography: Classification o fa polygon landscape on Samoylov Island, Lena Delta, Siberia, General Assembly European Geosciences Union (Vienna, Austria 2008).