1. Protection against rockfalls—stepchild in the design of rock slopes;Spang,1987
2. Rockfall protection: a review of current analytical and design methods;Richards,1986
3. Evaluation of rockfalls and its control;Ritchie;Highways Res. Record.,1963
4. ISMES experience on the model of St. Martino;Camponuovo,1977
5. Relations between scree slope morphometry and dynamics of accumulation processes;Broili,1977