1. Akbar K F, Hale W H G, Headley A D, 2003. Assessment of scenic beauty of the roadside vegetation in northern England. Landscape Urban Plan, 63(3): 139–144. DOI: 10.1016/s0169-2046(02) 0018-8
2. Chen Xinfeng, Jia Liming, 2003. Research on evaluation of in-forest landscapes in west Beijing mountain area. Scientia Silvae Sinica, 39(4): 59–66. (in Chinese)
3. Chen Yu, 2005. Evaluating method for landscape. Interior Design Construction, (3): 12–15. (in Chinese)
4. Daniel T C, Boster R S, 1976. Measuring Landscape Esthetics: The Scenic Beauty Estimation Method. Colorado: U. S. Department of Agriculture, Forest Service, Rocky Mountain and Range Experiment Station, 13–34.
5. Daniel T C, 2001. Whether scenic beauty? Visual landscape quality assessment in the 21st century. Landscape Urban Plan, 54(1): 267–281. DOI: 10.1016/s0169-2046(01)00141-4