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Hoenselaers, C., Kinnersley, W. and Xanthopoulos, B.C. (1979) Symmetries of the Stationary Einstein-Maxwell Equations. VI. Transformations Which Generate Asymptotically Flat Spacetimes with Arbitrary Multipole Moments. Journal of Mathematical Physics, 20, 2530-2536.
http://dx.doi.org/10.1063/1.524058

has been cited by the following article:

• TITLE: Approximate Kerr-Like Metric with Quadrupole

  AUTHORS: Francisco Frutos-Alfaro

  KEYWORDS: General Relativity, Einstein Field Equations, Quadrupole Moment

  JOURNAL NAME: International Journal of Astronomy and Astrophysics, Vol.6 No.3, September 29, 2016

  ABSTRACT: A new approximate metric representing the spacetime of a rotating deformed body is obtained by perturbing the Kerr metric to include up to the second order of the quadrupole moment. It has a simple form, because it is Kerr-like. Its Taylor expansion form coincides with second order quadrupole metrics with slow rotation already found. Moreover, it can be transformed to an improved Hartle-Thorne metric, which guarantees its validity to be useful in studying compact object, and it is possible to find an inner solution.