Field redefinition invariant Lagrange multiplier formalism with gauge symmetries D. G. C. McKeon, F. T. Brandt and S. Martins-Filho Eur. Phys. J. C, 84 4 (2024) 399 Published online: 17 April 2024 DOI: 10.1140/epjc/s10052-024-12764-z