Garus, S., & JurczyƄska, A. (2025). The Influence of the Filling Factor on the Formation of Local Resonance Regions in a Two-Dimensional Phononic Hexagonal Structure. Acta Physica Polonica A ISSN 1898-794X , 147(3), 172. https://doi.org/10.12693/APhysPolA.147.172