Delcourt, H. R.; Delcourt, P. A. (1988). "Quaternary landscape ecology: relevant scales in space and time". Landscape ecology. 2: 23–44. doi:10.1007/BF00138906.
Lam, N. S.-N.; Quattrochi, D. A. (1992). "On the Issues of Scale, Resolution, and Fractal Analysis in the Mapping Sciences". The Professional Geographer. 44 (1): 88–98. doi:10.1111/j.0033-0124.1992.00088.x.
