Dumitrache, P. 2011. On the stresses and deflections calculus in bending the cylindrical naturally twisted bars, with constant pitch. Analele Universităţii "Dunărea de Jos" din Galaţi. Fascicula XIV, Inginerie mecanică = Annals of “Dunarea de Jos“ University of Galati. Fascicle XIV, Mechanical Engineering. 18, 2 (Nov. 2011), 23-26.