TY - RPRT TI - Rockfall hazard and risk assessment in the Yosemite Valley, California, USA AU - F. Guzzetti AU - P. Reichenbach AU - G. F. Wieczorek PY - 2003 DO - 10.5194/nhess-3-491-2003 UR - https://pubs.usgs.gov/publication/70024899 ID - 70024899 ER -