1. Anscombe, G. E. M. (1959). An introduction to Wittgenstein’s Tractatus. South Bend, IN: St. Augustine’s Press.
2. Carnap, R. (1928). Der logische Aufbau der Welt. Leipzig: Felix Meiner Verlag.
3. Diamond, C. (1991). Throwing away the ladder: How to read the Tractatus, in the realistic spirit. Cambridge, MA: MIT Press.
4. Dasgupta, S. (2009). Individuals: An essay in revisionary metaphysics. Philosophical Studies: An International Journal for Philosophy in the Analytic Tradition, 145(1), 35–67.
5. Dasgupta, S. (2014). On the plurality of grounds. Philosophers’ Imprint, 14, 1–28.