1. Invariante Variation Problems;Noether,1918
2. Hydrodynamics;Birkhoff,1960
3. The Relativistic Quantum Theory of Elementary Particle Interactions;Mathews,1957
4. The group Methpds in the Theory of Elementary Particles;Sokolik,1957
5. On the dynamics of a rigid body in Riemannian spaces;Stojanovic;Z, angew. Math. Mech.,1957