Thorne, Kip S. „Gravitomagnetism, Jets in Quasars, and the Stanford Gyroscope Experiment“, . Near Zero: New Frontiers of Physics Fairbank:. New York: W. H. Freeman and Company, 1988 — 3, 4 (575, 576)-bet. „From our electrodynamical experience we can infer immediately that any rotating spherical body (e.g., the sun or the earth) will be surrounded by a radial gravitoelectric (Newtonian) field g and a dipolar gravitomagnetic field H. The gravitoelectric monopole moment is the body's mass M; the gravitomagnetic dipole moment is its spin angular momentum S.“
