Дрогомирецький, Я. and Довжинський, І. 2014. Drоhomyretskyi Ya.M., Dovzhynskyi I.M. The influence of powderlike additives concentration in consistent oil Litol-24 on wearpresisfant of tribosystems. Problems of Tribology. 69, 3 (Jul. 2014), 34–38.