R. Irmel et al., The reconstruction of debris flow frequency using sediments of lake Lago di Braies/ N-Italy, Zeitschrift fur Geomorphologie. Supplementband Zeitschrift fur Geomorphologie. Supplement;Zeitschrift fur Geomorphologie. Supplementary issue Annals of geomorphology. Supplement;Annales de geomorphologie. Supplement, 138, 2005, pp. 37-50