Ільїна, Ольга, Оксана Мікосянчик, Рудольф Мнацаканов,  Володимир Мельник, and  Олександр Печеришний. 2021. “QUALITY ASSESSMENT OF HYDRAULIC AVIATION OILS BY ENERGY AND WEAR INDICATORS”. Problems of Friction and Wear, no. 4(93) (December):39-47. https://doi.org/10.18372/0370-2197.4(93).16255.