Dragomirescu, Cristian, et Andrei Craifaleanu. Non-Linear Dynamic Behavior of a Ball Float Valve. Analele Universităţii "Dunărea de Jos" din Galaţi. Fascicula XIV, Inginerie mecanică = Annals of “Dunarea de Jos“ University of Galati. Fascicle XIV, Mechanical Engineering 19, no. 2 (novembre 15, 2012): 17-22. Consulté le juillet 3, 2024. https://gup.ugal.ro/ugaljournals/index.php/im/article/view/3721.