2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/5758The paper has been withdrawnA compiler related numerical error biased results toward lower values of N_nu. Correct results for N_nu can be found as a section in the preprint astro-ph/0303076AstrophysicsHigh Energy Physics - PhenomenologyA new map of neutrino cosmology - revised bounds on the number of neutrino species and the cosmological lepton asymmetry from WMAP datatext