S = -1 meson-baryon scattering in coupled-channel unitarized Chiral Perturbation TheoryC. García-Recio, J. Nieves, E. Ruiz Arriola and M. Vicente VacasEur. Phys. J. A, 18 2-3 (2003) 185-187DOI: https://doi.org/10.1140/epja/i2002-10297-y