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Covariant Origin of the $U(1)^3$ model for Euclidean Quantum Gravity. (arXiv:2011.00031v1 [gr-qc]) http://arxiv.org/abs/2011.00031
Covariant Origin of the $U(1)^3$ model for Euclidean Quantum Gravity. (arXiv:2011.00031v1 [gr-qc]) http://arxiv.org/abs/2011.00031