1. Manifolds, Tensor Analysis, and Applications;Abraham,1988
2. Sobolev Spaces;Adams,1975
3. Covariant brackets for particles and fields;Asorey;Mod. Phys. Lett. A,2017
4. Covariant Jacobi brackets for test particles;Asorey;Mod. Phys. Lett. A,2017
5. Lagrangian reduction by stages in field theory;Berbel;Ann. Henri Poincaré,2023