Exchange-degenerate Regge trajectories: A fresh look from resonance and forward scattering regions P. Desgrolard, M. Giffon, E. Martynov and E. PredazziEur. Phys. J. C, 18 3 (2001) 555-561DOI: https://doi.org/epjc/v18/p555(epjc0548)