Meson–baryon scattering in resummed baryon chiral perturbation theory using time-ordered perturbation theoryX.-L. Ren, E. Epelbaum, J. Gegelia and Ulf-G. MeißnerEur. Phys. J. C, 80 5 (2020) 406DOI: https://doi.org/10.1140/epjc/s10052-020-7991-x