Flag-dipole spinors: On the dual structure derivation and , and symmetriesR. J. Bueno Rogerio, A. R. Aguirre and C. H. Coronado VillalobosEur. Phys. J. C, 80 5 (2020) 380DOI: https://doi.org/10.1140/epjc/s10052-020-7957-z