2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/9684We demonstrate that high-redshift 1-Jansky radio sources are correlated with foreground IRAS galaxies on angular scales of several 10 arc minutes on a statistical significance level of up to 99.8\%. Based on a theoretical analysis published earlier, we propose to interpret these correlations in terms of gravitational lensing by large- scale structures.20 pages, uuencoded compressed postscript, MPA 731Astrophysicstext