1. Abedi, R., A. Bonyad and A. Shahbahrami. 2017. Forest density classification using IRS satellite image and non-parametric KNN method. Journal of Forest and Wood Products, 69(4): 667-677 (In Persian).
2. Akhavan, R. and M. Hassani, 2018. Efficiency of C-NN distance sampling method in comparison to sampling with fixed area plot for estimation of forest stem basal area in Kheyroud forests of northern Iran. Iranian Journal of Forest, 10(1): 111-122 (In Persian).
3. Askari, Y., M. Zobeiri, H. Sohrabi, and M. Heydari. 2013. Comparison of five distance sampling methods for estimating quantitative characteristics of Zagros Forests. Iranian Journal of Forest and Poplar Research, 21(2): 316-328 (In Persian).
4. Evaluation of distance methods for estimating population density in Populus euphratica Olivier natural stands (case study: Maroon riparian forests, Iran)
5. On Sampling Spatial Patterns by Distance Methods