BibTex format
@article{Ammari:2020:10.1137/20m1313350,
author = {Ammari, H and Davies, B and Yu, S},
doi = {10.1137/20m1313350},
journal = {Multiscale Modeling & Simulation},
pages = {1299--1317},
title = {Close-To-Touching Acoustic Subwavelength Resonators: Eigenfrequency Separation and Gradient Blow-Up},
url = {http://dx.doi.org/10.1137/20m1313350},
volume = {18},
year = {2020}
}