Mojtaba Nakhaeipour, Farhad Forouharmajd, Ehsanollah Habibi, Parham Soltani, Ali Tehrani. "Acoustic performance optimization of natural-fiber micro-perforated panels backed by an optimized polyurethane–fibrogranule composite." Scientific Reports, 2026. doi:10.1038/s41598-026-35058-8