1. Elsermans, M., Hongerloot, M. and Snoeys, R., “Damping in Taper Roller Bearings”, MTDR Conf. 1976
2. Elsermans, M. “Stijfheden en Inwendige Belastingsverdeling van Kegellagers onder Gekombineerde Belasting en Scheefstelling”, Ph.D. Thesis, Leuven, 1974.
3. Weck, M. and Ophey, L. “Experimentelle Ermittlung der Dämfung Radial Belasteter Wälzlager”, Industrie Anzeiger, No. 79 v. 30.9.81/103.
4. Klumpers, K., “Theoretische und Experimentelle Bestimmung der Dämfung Speilfreier Wä1zlager”, Ph.D. Thesis, Aachen, 1980.
5. The Measurement of the Radial Stiffness of Rolling Element Bearings under Oscillating Conditions;Walford;J.M.E.S.,1980