1. Internal constitution of Mars;Anderson;J. Geophys. Res.,1972
2. The Physics of Blown Sand and Desert Dunes;Bagnold,1941
3. The Measure of the Moon;Balwin,1963
4. Geology of the Eastern Rift System of Africa;Baker;Geol. Soc. Amer. Special Paper,1972
5. Continental Rifts;Beloussov,1969