Majorana Masses for Neutrinos in SO(10)
  We study the predictions for Majorana masses for neutrinos in SO(10) grandunification models. (This paper precedes and is cited in the article "PROTON DECAY AND NEUTRINO MASSES IN SO(10)", hep-ph/9405332) 
G. Amelino-Camelia, F. Buccella, and L. Rosa