1. Use of grease in rolling bearings;Dodson,1967
2. US Patent 3 384 583 (21 May 1968)
3. Developments in the field of soda base greases;Bondi,1951
4. The nature of soap-thickened lubricating greases;Vold;J Inst Pet,1952
5. Friction reduction with greases;Horth;NLGI Spokesman,1968