Robuta

https://dblp.org/rec/journals/access/GaoGCZWH19.html
Bibliographic details on Elastic Wave Modulation in Hollow Metamaterial Beam With Acoustic Black Hole.
elastic wavedblpmodulationhollowmetamaterial
https://www.arxiv.org/abs/1208.0198
Abstract page for arXiv paper 1208.0198: Dynamics of an Acoustic Black Hole as an Open Quantum System
acoustic black holedynamics