1. Bär, C., Ginoux, N., Pfäffle, F.: Wave Equations on Lorentzian Manifolds and Quantization. European Mathematical Society, Zürich (2007)
2. Beem, J.K., Ehrlich, P.E., Easley, K.L.: Global Lorentzian geometry. Marcel Dekker, New York (1996)
3. Benini, M., Dappiaggi, C.: Models of free quantum field theories on curved backgrounds. In: Brunetti, R., Dappiaggi, C., Fredenhagen, K., Yngvason, J. (eds.) Advances in Algebraic Quantum Field Theory, pp. 75–124. Springer, Heidelberg (2015).
arXiv:1505.04298
[math-ph]
4. Benini, M., Dappiaggi, C., Hack, T.-P.: Quantum field theory on curved backgrounds—a primer. Int. J. Mod. Phys. A 28, 1330023 (2013).
arXiv:1306.0527
[gr-qc]
5. Benini, M., Schenkel, A., Woike, L.: Operads for algebraic quantum field theory.
arXiv:1709.08657
[math-ph]