1. D. Dowson has written a most interesting series of biographies of 23 prominent people in tribology (mostly in Iubrication). The series may be found in a book entitled, The History of Tribology, Longman, Essex, England, 1978. Sketches of the biographies may also be found in a series of issues of the ASME Journal of Lubrication Technology from Vol. 99 (1977) to Vol. 102 (1980).
2. Jacob J. Bikerman, friction and adhesion
3. The direct measurement of the strength of metals on a sub-micrometre scale
4. Friction Characteristics of Sliding Surfaces Undergoing Subsurface Plastic Flow