Asatryan, H.M. The proton lifetime in SO(10) grand unification model / Время жизни протона в модели великого обьединения SO (10) H.M. Asatryan, A.N. Ioannisyan. - Yerevan : Yerevan Physics Institute, 1984. - 14 pages ; 20 cm. - ЕФИ-726(41)-84 . - 53 (NLA) . Subjects--Topical Terms: Physics Universal Decimal Class. No.: 53 (NLA)