STEIN, Erwin.
 Milestones of Direct Variational Calculus and its Analysis from the 17th Century until today and beyond – Mathematics meets Mechanics – with restriction to linear elasticity.
<strong>Computer Assisted Methods in Engineering and Science</strong>, [S.l.], v. 19, n. 1, p. 7-91, jan. 2017.
ISSN 2956-5839.
Available at: &lt;<a href="https://cames.ippt.gov.pl/index.php/cames/article/view/100" target="_new">https://cames.ippt.gov.pl/index.php/cames/article/view/100</a>&gt;. Date accessed: 27 nov. 2024.