1. The Physics of blown sands and desert dunes;Bagnold,1954
2. Hillslope form and process;Carson,1972
3. Liquefaction and rainwash erosion;De Ploey;Z. f. Geomorphologie,1971
4. Slope development in SW-Nigeria during late Pleistocene and Holocene;Fölster;Gießener Geogr. Schriften,1969
5. Observations of surficial talus movement;Gardner;Z. f. Geomorphologie,1969