2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/97594Communication by K. Schwarzschild to the Prussian Academy of Sciences, dealing with the gravitational field of a sphere of incompressible fluid.Plain TeX, 9 pagesHistory and Philosophy of PhysicsAstrophysicsGeneral Relativity and Quantum CosmologyOn the gravitational field of a sphere of incompressible fluid according to Einstein's theorytext