2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/104599General equations for the calculation of amplitudes are presented. As an illustration of application of proposed formulae we calculate electron-electron scattering amplitudes.12 pages, LaTeX2E, to appear in the proceedings of 9th Annual RDMS CMS Collaboration Conference, Minsk, Belarus, November 28 – December 2, 2004High Energy Physics - Phenomenologytext