Blikra, Lars H., Lene Kristensen, and Mario Lovisolo. “Subsurface Monitoring of Large Rockslides in Norway: A Key Requirement for Early Warning”. Italian journal of engineering geology and environment (November 30, 2013): 307–314. Accessed November 22, 2024. https://rosa.uniroma1.it/rosa02/engineering_geology_environment/article/view/1259.