Study of ambiguities in π−p → ΛK0 scattering amplitudes A. V. Anisovich, R. Beck, E. Klempt, V. A. Nikonov, A. V. Sarantsev, U. Thoma and Y. Wunderlich Eur. Phys. J. A, 49 10 (2013) 121 Published online: 14 October 2013 DOI: 10.1140/epja/i2013-13121-9