Mihalčová, J. a Hakim, H. A. (2009) „Tribotechnical Diagnostics of Used Oils II. Methods of Assessment of Physicochemical Properties of Oils", Chemické listy, 103(5). Dostupné z: http://blog.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/1539 (Viděno: 17 listopad 2024).