Shokuchkorov Kurbannazar Salim ugli, Kodirjonov Hasan Nodirjon ugli, Kodirjonov Husan Nodirjon ugli. MODELING OF A SPRING-FRICTION ENERGY-ABSORBING DEVICE FOR A FREIGHT CAR. JELSI [Internet]. 2025 Jul. 14 [cited 2026 Jan. 26];3(7):140-7. Available from: https://innovativepublication.uz/index.php/jelsi/article/view/3783