Крамар, В.М., Кіндрачук, М.В. and Лобурак, В.Я. 2013. Wear resistance as energy characteristic of material strength in friction area. Eastern-European Journal of Enterprise Technologies. 4, 7(64) (Jul. 2013), 8–11. DOI:https://doi.org/10.15587/1729-4061.2013.16678.