  Hadronic resonance propagators which take into account the analytical
properties of decay processes are built in terms of the dispersion relation
technique. Such propagators can describe multi-component systems, for example,
those when quark degrees of freedom create a resonance state, and decay
products correct the corresponding pole by adding hadronic deuteron-like
components. Meson and baryon states are considered, examples of particles with
different spins are presented.
