1. Remarques sur l'effect du frottement dans l'equilibre;Euler;Mém. Acad. Sci. Berl.,1762
2. History of Tribology,1979
3. Eytelwein, J.A. ‘Handbuch der Statik fester Körper', Bd. 1 311 Reimer, Berlin 1832, cited in reference 13.
4. On the efficiency of belts or straps as communicators of work;Reynolds;The Engineer,1874
5. Power transmission of belts: an investigation of fundamentals;Swift;Proc. I. Mech. E.,1928