1. “Lubrication of Gear Teeth,”;Engineering,1916
2. “The Effect of Variation of Viscsity with Pressure on the Load Carrying Capacity of Oil Films Between Gear Teeth,”;McEween;J. of Inst. Pet.,1952
3. Daring, D.W., and Radzimovsky, E.I., “Lubricating Film Thickness and Load Capacity of Spur Gears: Analytical Investigation” ASME Paper No.63-WA-85, 1963
4. “Elastohydrodynamic Lubrication — The Fundamentals of Roller and Gear Lubrication,”;Dowson,1966
5. Gu, A., “Elastohydrodynamic Lubrication of Involute Gears,” ASME Paper No.72–PTG-34.