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WikiPedia: Địa_mạo_học ftp://rock.geosociety.org/pub/Memorials/v41/Schumm... http://www.amusingplanet.com/2014/07/cono-de-arita... http://www.geomorphology-iag-paris2013.com/en/s3-%... http://www.giub.uni-bonn.de/akgeomorphologie/engli... http://calm.geo.berkeley.edu/geomorph/gtl.pdf http://ecommons.cornell.edu/bitstream/1813/5287/1/... http://www.geo.hunter.cuny.edu/terrain/intro.html http://adsabs.harvard.edu/abs/1950AmJS..248..800S http://adsabs.harvard.edu/abs/1971JGeoE..19....3F http://adsabs.harvard.edu/abs/1972GSAB...83.3059C