« Mud pumping equipment attached to excavator arm ». 2012. Analele Universităţii "Dunărea de Jos" din Galaţi. Fascicula XIV, Inginerie mecanică = Annals of “Dunarea de Jos“ University of Galati. Fascicle XIV, Mechanical Engineering 19 (1): 91-94. https://ojs.ugal.ro/index.php/im/article/view/3703.