1. Development of visual preference for natural environments;Balling;Environ. Behav.,1982
2. Preferences, satisfactions, and the physical environments of urban neighborhoods;Frey,1981
3. It's wise woodsman who knows what's biting him;Frisbie,1969
4. The Perception of the Visual World;Gibson,1950
5. The Ecological Approach to Visual Perception;Gibson,1979