CASTINEIRA-IBANEZ, S.; RUBIO, C.; ROMERO- GARCIA, V.; SANCHEZ-PEREZ, J. V.; GARCIA-RAFFI, L. M. Design, Manufacture and Characterization of an Acoustic Barrier Made of Multi-Phenomena Cylindrical Scatterers Arranged in a Fractal-Based Geometry. Arch. Acoust. 2013, 37 (4), 455–462.