Rockfall. In: Encyclopedia of Natural Hazards
Guzzetti F. (2012) Rockfall. In: Bobrowsky P.T. (ed.), Encyclopedia of Natural Hazards, doi: 10.1007/978-1-4020-4399-4, Springer Science+Business Media B.V. 2011.
http://geomorphology.irpi.cnr.it/publications/repository/links/edited-books/rockfall.-in-encyclopedia-of-natural-hazards
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Rockfall. In: Encyclopedia of Natural Hazards
Guzzetti F. (2012) Rockfall. In: Bobrowsky P.T. (ed.), Encyclopedia of Natural Hazards, doi: 10.1007/978-1-4020-4399-4, Springer Science+Business Media B.V. 2011.
