Wiegand, Alexander Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
1212.3691.pdf (Preprint), 939KB
Kalus, B., Schwarz, D. J., Seikel, M., & Wiegand, A. (2013). Constraints on anisotropic cosmic expansion from supernovae. Astronomy and Astrophysics, 553: A56. doi:10.1051/0004-6361/201220928.