Rockfall travel distance analysis by using empirical models (Sola d'Andorra la Vella, Central Pyrenees).Published in:Natural Hazards & Earth System Sciences, 2009, v. 9, n. 6, p. 2107, doi. 10.5194/nhess-9-2107-2009By:Copons, R.;Vilaplana, J. M.;Linares, R.Publication type:Article