Bacigalupo, Andrea and Gnecco, Giorgio and Lepidi, Marco and Gambarotta, Luigi Design of acoustic metamaterials through nonlinear programming. In: Machine Learning, Optimization, and Big Data. Second International Workshop, MOD 2016, Volterra, Italy, August 26-29, 2016, Revised Selected Papers. Lecture Notes in Computer Science (10122). Springer, pp. 170-181. ISBN 978-3-319-51468-0 (2016)