Stationary weak gravitational fields to any order of approximation

Abstract
A method of successive approximations is set up to obtain, to any desired degree of accuracy, the field of a single body at rest, or of a material continuum in steady motion, in particular a body with an axis of symmetry about which it is steadily rotating. It is found that the internal structure of gravitating matter plays a more important role in the field outside the matter than seems to have been realized.