1. Tribological properties of some vegetable oils and fats;Steren;Lub. Eng.,1989
2. Biodegradable lubricating greases;Stempfel;NLGI Spokesman,1991
3. Vegetable oils as a base for lubricants;Jorsmo;9th Int. Coll., Ecological and Economical Aspects of Tribology,1991
4. Performance testing of lubricants based on high oleic vegetable oils;Lal;9th Int, Coll., Ecological and Economical Aspects of Tribology,1991
5. Chemical modification of friction surfaces in boundary lubrication;Matveeevsky;ASLE Trans,1981