Entwurf Field Equations Proposed
The Entwurf collaboration introduced provisional field equations intended to connect the spacetime metric with matter, giving Einstein a concrete but still incomplete relativistic theory of gravitation.
Albert Einstein · Event
The Entwurf collaboration introduced provisional field equations intended to connect the spacetime metric with matter, giving Einstein a concrete but still incomplete relativistic theory of gravitation.

The Entwurf collaboration introduced provisional field equations intended to connect the spacetime metric with matter, giving Einstein a concrete but still incomplete relativistic theory of gravitation.