1. NASA TN D-5420;Loomis W,1969
2. Zaretsky , E V. and Ludwig , L P. “Advancements in Bearings, Seals, and Lubricants. Aircraft Propulsion,” NASA SP-259 , 1971 , pp 421 – 463
3. Sliney , H E. “Bearings, Lubricants, and Seals for the Space Shuttle, Space Transportation System Technology Symposium. Vol. 3—Structures and Materials,” NASA TM X-52876 —Vol. 3 , 1970 , pp 289 – 296
4. Properties of a New Class of Polyaromatics for Use as High-Temperature Lubricants and Functional Fluids
5. The lubricity characteristics of heavy aromatics