Renormalization in effective theories: prescriptions for kaon-nucleon   resonance parameters
  In this talk we show how it is possible to apply the general scheme of effective scattering theory to the description of hadronic processes. We perform the numerical tests of the tree level bootstrap constraints for renormalization prescriptions in the case of elastic kaon-nucleon scattering process. 
K. M. Semenov-Tian-Shansky (Universit'e de Li`ege au Sart Tilman and   St.-Petersburg State University)