Drăgan, N. 2012. Aspects regarding the dynamics of the vibrating conveyors modeled as 3DOF elastic systems. Analele Universităţii "Dunărea de Jos" din Galaţi. Fascicula XIV, Inginerie mecanică = Annals of “Dunarea de Jos“ University of Galati. Fascicle XIV, Mechanical Engineering. 19, 2 (Nov. 2012), 29-34.