共 2 条
- [1] Editorial note to: J. N. Goldberg and R. K. Sachs, A theorem on Petrov types General Relativity and Gravitation, 2009, 41 : 421 - 432
- [2] Editorial note to: Pascual Jordan, Jürgen Ehlers and Rainer K. Sachs, Contributions to the theory of pure gravitational radiation. Exact solutions of the field equations of the general theory of relativity II General Relativity and Gravitation, 2013, 45 : 2683 - 2689