Cristea, George, Constantin Georgescu, Dumitru Dima, Petrica Alexandru, et Lorena Deleanu. 2017. TRIBOLOGICAL EVALUATION OF SOYBEAN OIL ADDITIVATED WITH NANO GRAPHENE. Mechanical Testing and Diagnosis 6 (4), 5-11. https://www.gup.ugal.ro/ugaljournals/index.php/mtd/article/view/2307.