1. Stute, M. and Camenzind, M., Towards a self-consistent relativistic model of the exterior gravitational field of rapidly rotating neutron stars, Mon. Not. Roy. Astron. Soc., 336, 2002, 831–840. arXiv:astro- ph/0301466
2. Bicak, J., Selected solutions of Einstein field equations: their role in general relativity and astrophysics, Lect. Notes Phys., 540, 2000, 1–126. arXiv:gr-qc/0004016
3. MacCallum, M. A. H., Finding and using exact solutions of the Einstein equations. arXiv:gr-qc/0601102v
4. Bicak, J., Einstein equations: exact solutions, Encyclopedia of Mathematical Physics, Vol. 2, Elsevier, Oxford, 2006, 165–173. arXiv:gr-qc/0604102
5. Weinberg, S. L., Gravitation and Cosmology (Ch.7.4, Ch.11.8), Wiley, New York, 1972.