1. “Invariante Variationsprobleme". Nachrichten von der Gesellschaft der Wissenschaften zu Göttingen;Noether;Mathematisch-Physikalische Klasse,1918
2. Variations Principles in Classical Mechanics;Cline,2018
3. On the status of conservation laws in physics: implications for semiclassical gravity;Maudlin;Studies of History and Philosophy of Modern Physics,2020
4. “Energy non-conservation in quantum mechanics”;Carroll;Found. Phys.,2021