1. Developments in the field of soda base greases;Bondi,1951
2. Soap as a lubricant;Boner;NLGI Spokesman,1951
3. Friction of greases and grease components during boundary lubrication;Godfrey;ASLE Trans.,1964
4. Friction reduction with greases;Horth;NLGI Spokesman,1968
5. Frictional characteristics of lubricating greases;Calhoun;NLGI Spokesman,1969