DAVID, G. P., FREITAS, M.: Engineering Geology principles and practice. Berlin: Springer, 2009. ISBN 9783540686262 .
MORISAWA, M.: Geomorphology and natural hazards: proceedings of the 25th Binghamton Symposium in Geomorphology, held September 24-25, 1994 at SUNY, Binghamton, USA. New York: Elsevier, 1994. ISBN 978-0-444-82012-9 .