CONSTRUCTION OF PISTON OUTER PROFILE FOR ROTARY TYPE EXPANSION MACHINE. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 3, p. 257–260, 2019. DOI: 10.17770/etr2019vol3.4059. Disponível em: https://archive-journals.rtu.lv/etr/article/view/4370.. Acesso em: 11 mar. 2026.