1. A comparison of energy consumption in earth covered vs. non-earth covered buildings;Bligh,1976
2. The Climate Near the Ground;Geiger,1965
3. B.A. Brown and B. Givoni, unpublished paper, School of Architecture, University of California, Los Angeles.
4. An alternative to suburbia;Moreland,1976
5. The effect of ground cover on earth temperature;Kusuda,1976