Rockfall hazard and risk assessment in the Yosemite Valley, California, USA
Guzzetti F.1, Reichenbach P.2, Wieczorek G.F. 3, 2003, Rockfall hazard and risk assessment in the Yosemite Valley, California, USA,
3 (6) (2003): 491–503.,
URL: http://www.cnr.it/prodotto/i/66838
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