Tóth, Sándor F., Marc E McDill, Nora Konnyu, と Sonney George. 2012. 「A Strengthening Procedure for the Path Formulation of the Area-Based Adjacency Problem in Harvest Scheduling Models」. Mathematical and Computational Forestry & Natural-Resource Sciences (MCFNS) 4 (1): 27-49 (23). https://mcfns.com/index.php/Journal/article/view/4.4.