Team, Support. “Lagrange Multipliers, an Elementary Practical Zeroth-Order Approach: Yutthapong Pianroj, Seppo Karrila, Kittisak Tinpun, Aniruth Phon-On”. Thai Journal of Mathematics (March 31, 2022): 54–61. Accessed May 4, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1287.