Shaun A. Thomas, Filipe B. Abdalla, and Ofer Lahav, Upper Bound of 0.28 eV on Neutrino Masses from the Largest Photometric Redshift Survey http://physics.aps.org/pdf/10.1103/PhysRevLett.105.031301.pdf(չաշխատող հղում), Physical Review Letters, 2010, 105, 3, էջ 031301