2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/46295The techniques of dispersion relations match very well with those of effective field theory. I describe the techniques for using dispersion relations effectively, and give some pedagogical examples to illustrate the range of applications.21 pages, Latex, Lecture presented at the International School on Effective Field Theories, Almunecar, Spain, June 1995. Admin note: two figures not suppliedHigh Energy Physics - Phenomenologytext