1. Proc. Int. Conf. on Lubrication and Wear;Kruschov,1957
2. Isslyedovaniye Iznashivaniya Metallov;Kruschov,1960
3. NEL Transi. 889 (National Engineering Laboratory).
4. Low stress abrasive and adhesive wear testing;Tucker;ASTM Spec. Tech. Publ. 615,1977