Non-perturbative BRST quantization of Euclidean Yang–Mills theories in Curci–Ferrari gauges A. D. Pereira, R. F. Sobreiro and S. P. Sorella Eur. Phys. J. C, 76 10 (2016) 528 Published online: 27 September 2016 DOI: 10.1140/epjc/s10052-016-4368-2