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2. “Plane Sliders of Finite Width”;Hays;Trans. A. S. L. E.,1958
3. “A Theoretical Evaluation of the Persistence of Hydrodynamic Lubrication in the Hip Joint during Walking”, Paul Marnell, D. Sc. thesis, (H. G. Elrod, advisor), Columbia Univ., New York, 1973.
4. “Calculated Performance of Non-Newtonian Lubricants in Finite Width Journal Bearings”, Trans. A. S. L. E., vol. 8, 1965, pp. 191–194.