1. Aas, G. (1979). “Skredfare og arealplanlegging. Vurdering av faregrad og sikringstiltak”. Ullensvang Hotell, Lofthus i Hardanger, NIF-kurs.
2. Aas, G. (1981). “Stability of natural slopes in quick clays.” Proc., 10th International Conference on Soil Mechanics and Foundation Engineering, Stockholm, Sweden. V 3, pp. 333–338.
3. Anda, E. and Blikra, L. (1998). “Rock-avalanche hazard in Møre og Romsdal, Western Norway. 25 Years of Snow Avalanche Research.” Norwegian Geotechnical Institute, Publikasjon nr. 203.
4. Bjerrum, L. and Jørstad F. (1968). “Stability of Rock Slopes in Norway.” NGI publication No. 79.
5. Blikra, L.H. 2008. “The Åknes rockslide; monitoring, threshold values and early-warning” 10th International Symposium on Landslides and Engineered Slopes, Xi’an, June 2008. China.