Global Structure of the Kerr Family of Gravitational Fields.

In " THE PHYSICAL REVIEW ", Secons Series, Vol. 174, N. 5, pp. 1559-1571, the whole issue in original printed wrappers. Ownership inscription, a very fine copy. First edition. " Brandon Carter, FRS (born 1942) is an Australian theoretical physicist, best known for his work on the properties of black holes and for being the first to name and employ the anthropic principle in its contemporary form. He is a researcher at the Meudon campus of the Laboratoire Univers et Théories, part of the CNRS.
Carter studied at the University of Cambridge under Dennis Sciama. He found the exact solution of the geodesic equations for the Kerr/Newman electrovacuum solution, and the maximal analytic extension of this solution. In the process, he discovered the extraordinary fourth constant of motion and the Killing–Yano tensor." (https://en.wikipedia.org/wiki/Brandon_Carter).
"The Carter constant is a conserved quantity for motion around black holes in the general relativistic formulation of gravity. Carter's constant was derived for a spinning, charged black hole by Australian theoretical physicist Brandon Carter in 1968. Carter's constant along with the energy, axial angular momentum, and particle rest mass provide the four conserved quantities necessary to uniquely determine all orbits in the Kerr–Newman spacetime (even those of charged particles)." (https://en.wikipedia.org/wiki/Carter_constant).