  Spin-5/2 gauge fields are quantized in an irreducible way within both the
BRST and BRST-anti-BRST manners. To this end, we transform the reducible
generating set into an irreducible one, such that the physical observables
corresponding to these two formulations coincide. The gauge-fixing procedure
emphasizes on the one hand the differences among our procedure and the results
obtained in the literature, and on the other hand the equivalence between our
BRST and BRST-anti-BRST approaches.
