G. Bluman and J. Ganghoffer, “Connecting Euler and Lagrange systems as nonlocally related systems of dynamical nonlinear elasticity”, Arch. Mech., vol. 63, no. 4, pp. 363–382, Aug. 2011, Accessed: Jan. 17, 2026. [Online]. Available: http://am.ippt.gov.pl/index.php/am/article/view/v63p363