1. Adams, Robert. 1979. “Primitive Thisness and Primitive Identity.”The Journal for Philosophy 76: 5–26.
2. Barbour, Julian B., and Herbert Pfister (eds.). 1995.Mach's Principle: from Newton's Bucket to Quantum Gravity(Einstein Studies, Vol. 6). Boston: Birkhäuser.
3. Butterfield, Jeremy. 1989. “The Hole Truth.”British Journal for the Philosophy of Science40: 1–28.
4. Cattani, Carlo, and Michelangelo De Maria. 1989. “The 1915 Epistolary Controversy Between Einstein and Tullio Levi-Civita.” In (Howard and Stachel 1989, 175–200).
5. Corry, Leo, Jürgen Renn, and John Stachel. 1998. “Belated Decision in the Einstein—Hilbert Priority Dispute.”Science278 (1997): 1270–1273.