2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/40097It is shown that the criticism (revised version) made in hep-th/0007108 (by Jentschura and Weniger) on hep-th/0006057 has no valid ground. Furthemore we emphasize that the concept of the electric-magnetic duality used in the analysis of QED one-loop effective action in physics/0010038 (by Jentschura) has first been introduced in hep-th/0006057.5 pages, revised versionHigh Energy Physics - PhenomenologyHigh Energy Physics - Theorytext