Gribov ambiguities at the Landau-maximal Abelian interpolating gauge Antônio D. Pereira and Rodrigo F. Sobreiro Eur. Phys. J. C, 74 8 (2014) 2984 Published online: 07 August 2014 DOI: 10.1140/epjc/s10052-014-2984-2