Chatterjee, Sudipta (2008). Tribological Properties of Pseudo-elastic Nickel-titanium (Thesis). University of California. էջեր 11–12. ISBN9780549844372 – via ProQuest. «Classical Greek philosophers like Aristotle, Pliny the Elder and Vitruvius wrote about the existence of friction, the effect of lubricants and the advantages of metal bearings around 350 B.C.»(չաշխատող հղում)
Popova, Elena (2015 թ․ հունիսի 1). «The research works of Coulomb and Amontons and generalized laws of friction». Friction (անգլերեն). 3 (2): 183–190. doi:10.1007/s40544-015-0074-6.
Ferreira, Vanderlei; Yoshimura, Humberto Naoyuki; Sinatora, Amilton (2012 թ․ օգոստոսի 30). «Ultra-low friction coefficient in alumina–silicon nitride pair lubricated with water». Wear. 296 (1–2): 656–659. doi:10.1016/j.wear.2012.07.030.