2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/55267The content of the comment [hep-th/9712219] is the derivation of Eq.(13) in Phys. Rev. Lett. 78 (1997) 163 by direct differential calculus: which is precisely the same method we used to derive it (it is in fact difficult to imagine any other possible derivation).2 pages, LaTeXHigh Energy Physics - Theorytext