Cresson, J., Frederico, G. S. F. and Torres, D. F. M. (2009) “Constants of motion for non-differentiable quantum variational problems”, Topological Methods in Nonlinear Analysis, 33(2), pp. 217–231. Available at: https://apcz.umk.pl/TMNA/article/view/TMNA.2009.015 (Accessed: 14 December 2024).