1. Hydrodynamics of the seals used in hydraulic drives;Karaszkiewicz,1994
2. Optimization of crankshaft seals;Gawliński;SAE Transact,1989
3. Kragelski J.V.: Friction and wear (in Russian), Mashinostroenie, Moskva, 1978.
4. The relation between the friction and visco-elastic properties of rubber;Grosch;Proc. R. Soc.,1996
5. Local contact conditions and frictional losses in oil lip seals;Gawliński,2004