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author={Kandeva Mara,Karastoyanov D,Assenova E,Jakimovska Kristina,Simeonov S,Vencl Aleksandar A},
year={2016},
title={The influence of the valena metal-plating additive on tribotechnical characteristics of the Steel-Bronze tribological system},
journal={JOURNAL OF FRICTION AND WEAR},
volume={37},
number={2},
pages={187-190},
document_type={Article},
} 

@ARTICLE{
author={Dasic Predrag V,Franek Friedrich,Assenova E,Radovanovic Miroslav R},
year={2003},
title={International standardization and organizations in the field of tribology},
journal={INDUSTRIAL LUBRICATION AND TRIBOLOGY},
volume={55},
number={6},
pages={287-291},
document_type={Article},
}