Wasel, Mohamed, Abdel-Rahim A. Abdel-Rahim, Hany El-Gohary, and Mohamed Elashmawy. “Theoretical Study of the Parameters Affecting Vane Tip Friction in Oil Vane Pumps Using Simplified Tehl-Model”. The International Journal of Science & Technoledge 3, no. 3 (March 31, 2015). Accessed July 7, 2024. http://internationaljournalcorner.com/index.php/theijst/article/view/124311.