by Dr. J. M. Conway-Jones and A. J. Leopard. From the Proceedings of the Fourth Turbomachinery Symposium, 1976.
By Fouad Y. Zeidan and Bernard S. Herbage. From the Proceedings of the 20th Turbomachinery Symposium, 1991.
"Hydrodynamic Bearing Damage and Remediation of Contributing Factors in Rotating Machinery," by Barry Blair and Guy Pethybridge, 9th EDF/Pprime (LMS) Poitiers Workshop, Oct 7-8, 2010.