trou noir de Kerr
1973 / Relativity Twins in the Kerr Metric / F. Landis Markley / American Journal of Physics 41 (1973) p. 1246 [doi]
1997 / A heuristic way of obtaining the Kerr metric / Jörg Enderlein / American Journal of Physics 65 (1997) p. 897 [doi]