1. Theory of gearing;Litvin,1989
2. Solving the conjugated curves of Roots blower lobe profile by analytic method;Tsay;Journal of Machine,1987
3. G.E. Hsieh, J.L. Meng, Computer aided design of Roots blower profile, in: Proceedings of the 1989 Technology and Occupation Education Conference at the National Taipei University of Technology Taiwan ROC, 1989, pp. 2123–2128
4. The mathematical model and computer aided manufacturing of Roots blower gerotor profile;Chiu;Journal of Technology,1994
5. Z.H. Fong, P.Y. Wang, Study on the tooth profile of the multi-lobed Roots pump, in: Proceedings of 10th World Congress on Theory of Machines and Mechanisms, 1999, pp. 2392–2405