NASIRI, M., S. A. HOSSEINI, A. SORKHI, and M. TAFAZOLI. “Modify Existing Forest Road Network and Offer New Path With Least Variation”. International Journal of Natural and Engineering Sciences, vol. 6, no. 3, June 2019, pp. 81-86, https://ijnes.org/index.php/ijnes/article/view/107.