Media type: E-Article Title: Observation of higher-order topological acoustic states protected by generalized chiral symmetry Contributor: Ni, Xiang; Weiner, Matthew; Alù, Andrea; Khanikaev, Alexander B. Published: Springer Science and Business Media LLC, 2019 Published in: Nature Materials, 18 (2019) 2, Seite 113-120 Language: English DOI: 10.1038/s41563-018-0252-9 ISSN: 1476-1122; 1476-4660 Origination: Footnote: