1. Aste, J. P., Falcetta, J. L. (1987): Ecroulements de masses rocheuses, B.R.G.M., Lyon.
2. Azimi, C., Desvarreux, P., Giraud, A., Martin Cocher, J. (1982): Methode de calcul de la dynamique des chutes de blocks. Application a' l'etude du versant de la montagne de la Pale (vercors). Bull. Liaison Labo P. Ch. 122, 93?102.
3. Azzoni, A. (1993): Methods for predicting rockfalls. MSc Dissertation, Imperial College of Science, Technology and Medicine, London.
4. Azzoni, A., Drigo, E., Giani, G. P., Rossi, P. P., Zaninetti, A. (1992): In situ observation of rockfall analysis parameters. In: Proc., 6th Int. Symposium on Landslides, Christchurch, 307?314.
5. Bozzolo, D., Pamini, R. (1982): Modello matematico per lo studio della caduta dei massi, Laboratorio di fisica terrestre-ICTS, Lugano-Trevano.