1. A characterization of the Clifford torus
2. On the Decomposition of Tensors
3. Krupka, D. (1995) The Trace Decomposition Problem. Beitragezur Algebra und Geometrie, 36, 303-316.
4. Krupka, D. (2017) Decompositions of Covariant Tensor Spaces. Lepage Research Institute Library, 3, 1-20.
5. The Weyl tensors