2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/195850This is a comment on the paper gr-qc/0605153, by Singh, Mobed and Papini.1 page, Revtex, no figureGeneral Relativity and Quantum CosmologyComment on ``Can gravity distinguish between Dirac and Majorana neutrinos?''text