2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/83065We discuss aspects of a covariant QCD modeling of meson physics by illustrating applications to several coupling constants and form factors. In particular, we cover the $ρππ$ and $π^0 γγ$ interactions, the $ρ$ contribution to the pion charge radius, and $πNN$ coupling.Talk given at the IVth Workshop on Quantum Chromodynamics, Paris, June 1998; 8 pages, LaTeX, incl 3 PS figs; to be publishedNuclear Theorytext