2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/24519This is a comment on publication in Phys. Rev. Lett. 90, 087205 (2003): ``Exchange interaction parameters and adiabatic spin-wave spectra of ferromagnets: A `renormalized magnetic force theorem'''Materials ScienceStrongly Correlated Electronstext