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In all nontrivial cases renormalization, as it is usually formulated, is not a change of integration variables in the functional integral, plus parameter redefinitions, but a set of replacements, of actions and/or field variables and parameters.
S. Weinberg, Ultraviolet divergences in quantum theories of gravitation, in An Einstein centenary survey
1979
Earlier work this paper cites.
See for example G. ’t Hooft and M. Veltman, One-loop divergences in the theory of gravitation, Ann. Inst. Poincaré, 20 (1974) 69; M.H. Goroff and A. Sagnotti, The ultraviolet behavior of Einstein gravity, Nucl. Phys. B 266 (1986) 709; A.E.M. van de Ven, Two loop quantum gravity, Nucl. Phys. B 378 (1992) 309
1992
Cited alongside, same era.
See for example, J. Zinn-Justin, Quantum field theory and critical phenomena
1992
Later among the works it cites.
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