1. Aczel, P. (1978). The type theoretic interpretation of constructive set theory. In L. P. A. MacIntrye & J. Paris (Eds.), Logic colloquium ’77 (Proc. Conf., Wroclaw, 1977), Stud. Logic Foundations Math. (vol. 96, pp. 55–66). Amsterdam, New York: North-Holland.
2. Altenkirch, T., & McBride, C. (2006). Towards observational type theory. Manuscript, available online.
3. Angiuli, C., Harper, R., & Wilson, T. (2016). Computational higher type theory I: Abstract cubical realizability. arXiv preprint
arXiv:1604.08873
4. Awodey, S. (2014). Structuralism, Invariance and univalence. Philosophia Mathematica, 22(1), 1–11.
5. Awodey, S., & Warren, M. A. (2009). Homotopy theoretic models of identity types. In Mathematical proceedings of the Cambridge Philosophical Society, vol. 146, no 45, pp. 45–55.