Y. D. Zhyvitsa and K. G. Kuzmin, “On calculation of the stability radius for a minimum spanning tree”, Журнал Белорусского государственного университета. Математика. Информатика, no. 1, pp. 34–38, Dec. 2017, Accessed: Jul. 18, 2026. [Online]. Available: https://journals.bsu.by/index.php/mathematics/article/view/735