1. Variational Principles of Continuum Mechanics;Berdichevsky,2009
2. Invariante variationsprobleme;Noether;Nachr. D. Königlichen Ges. Wiss. Gött. Math.-Phys. Klasse Heft,1918
3. Analytical Study of Gas Dynamics and Fluid;Shmyglevski,1999
4. Applications of Symmetry Methods to Partial Differential Equations;Bluman,2010
5. Nonlinear self-adjointness and conservation laws;Ibragimov;J. Phys. A,2011