- Yu. V. Gusev, A. I. Zelnikov, “Two-dimensional effective action for matter fields coupled to the dilaton”, Phys. Rev. D, 61, no. 8, 2000, 084010

- John F. Donoghue, Basem Kamal El-Menoufi, “Covariant non-local action for massless QED and the curvature expansion”, J. High Energ. Phys., 2015, no. 10, 2015, 44

- Claudia de Rham, Andrew J. Tolley, “Speed of gravity”, Phys. Rev. D, 101, no. 6, 2020, 063518

- Folkert Kuipers, Xavier Calmet, “Singularity Theorems in the Effective Field Theory for Quantum Gravity at Second Order in Curvature”, Universe, 6, no. 10, 2020, 171

- Brando Bellazzini, Giulia Isabella, Matthew Lewandowski, Francesco Sgarlata, “Gravitational causality and the self-stress of photons”, J. High Energ. Phys., 2022, no. 5, 2022, 154

- Johanna Erdmenger, “Conformally covariant differential operators: properties and applications”, Class. Quantum Grav., 14, no. 8, 1997, 2061

- A Codello, G D’Odorico, C Pagani, R Percacci, “The renormalization group and Weyl invariance”, Class. Quantum Grav., 30, no. 11, 2013, 115015

- A. O. Barvinsky, W. Wachowski, “Notes on conformal anomaly, nonlocal effective action, and the metamorphosis of the running scale”, Phys. Rev. D, 108, no. 4, 2023, 045014

- Satoshi Yajima, “Evaluation of the heat kernel in Riemann - Cartan space using the covariant Taylor expansion method”, Class. Quantum Grav., 14, no. 10, 1997, 2853

- Gianluca Calcagni, Modified Gravity and Cosmology, 2021, 109
