Stein, E. (2017) “Milestones of Direct Variational Calculus and its Analysis from the 17th Century until today and beyond – Mathematics meets Mechanics – with restriction to linear elasticity”, Computer Assisted Methods in Engineering and Science, 19(1), pp. 7–91. Available at: https://cames3.ippt.pan.pl/index.php/cames/article/view/100 (Accessed: 12 January 2025).