2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42635We present the electroweak one-loop corrections to the processes e+e- -> f bar-f, f = tau, c, b, t, at energies relevant for a future linear collider. The results of two independent calculations are compared and agreement is found at a technical-precision level of ten to twelve digits.14 pages latex, 1 figure, 9 tables, contribution to the LC notes of the ECFA/DESY Linear Collider Workshop series. Revised version (some eqs. corrected, one definition added, two references added to text. Results unchanged)High Energy Physics - Phenomenologytext