See https://einsteinpapers.press.princeton.edu/vol6-trans/ https://einsteinpapers.press.princeton.edu/vol6-trans/ Doc. 21 On the General Theory of Relativity h

See https://einsteinpapers.press.princeton.edu/vol6-trans/ https://einsteinpapers.press.princeton.edu/vol6-trans/ Doc. 21 On the General Theory of Relativity https://einsteinpapers.press.princeton.edu/vol6-trans/110 https://einsteinpapers.press.princeton.edu/vol6-trans/110 Doc. 22 On the General Theory of Relativity (Addendum) https://einsteinpapers.press.princeton.edu/vol6-trans/120 https://einsteinpapers.press.princeton.edu/vol6-trans/120 Doc. 24 Explanation of the Perihelion Motion of Mercury from the General Theory of Relativity https://einsteinpapers.press.princeton.edu/vol6-trans/124 https://einsteinpapers.press.princeton.edu/vol6-trans/124 Doc. 25 The Field Equations of Gravitation https://einsteinpapers.press.princeton.edu/vol6-trans/129 https://einsteinpapers.press.princeton.edu/vol6-trans/129