“GENERALIZATION OF APPLICATION OF FUNDAMENTAL LEMMA OF VARIATIONAL CALCULUS TO THE REVOLUTIONIZE TRANSPORTATION BY USING THE SOLUTION OF BRACHICHRONE”. Balkan Journal of Applied Mathematics and Informatics 6, no. 1 (June 20, 2023): 49–58. Accessed October 3, 2025. https://js.ugd.edu.mk/index.php/bjami/article/view/5658.