2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/44171This talk is a natural continuation of that given by V.Vereshagin at this conference. We discuss some details not covered in that talk and review the calculational technique using the (πN)-elastic scattering as an example. Finally, we briefly mention some results of numerical comparison with experimental data. More technical details can be found in the talk by K.Semenov-Tian-Shansky (this conference)devoted to the analysis of elastic KN scattering.6 pages, talk given at HSQCD 2004, Russia, May 2004, to be published in ProceedingsHigh Energy Physics - Phenomenologytext