TYMOSHCHUK, Oleksandr. ANALYSIS AND EVALUATION OF THE ACCURACY OF METHODS FOR CALCULATING THE DENSITY OF CHANNELS AND THE COMBINED AREA OF THE CONTACT SURFACE OF LUBRICATION-FREE PISTON SEALS. Herald of Khmelnytskyi National University. Technical sciences, [S. l.], v. 315, n. 6(2), p. 125–131, 2022. DOI: 10.31891/2307-5732-2022-315-6(2)-125-131. Disponível em: https://heraldts.khmnu.edu.ua/index.php/heraldts/article/view/953. Acesso em: 26 jan. 2026.