ŁAPKA, Wojciech. Numerical and Experimental Analysis of Tuning Three Selected Types of Acoustic Helicoidal Resonators with 90-Degree Duct Elbow. Engineering Transactions, [S. l.], v. 73, n. 4, p. 701–717, 2025. DOI: 10.24423/engtrans.3377.2025. Disponível em: https://et.ippt.pan.pl/index.php/et/article/view/3377. Acesso em: 6 jan. 2026.