@article{article5487bfda,
title   = {Subwavelength Focusing Beam and Superresolution Ultrasonic Imaging Using a Core-Shell Lens},
author = {Leão Neto, J. P. and Cardoso, G. S. and Marques, A. S. and Andrade, Marco Aurélio Brizzotti and Adamowski, Júlio Cezar and Pavan, T. Z. and Silva, G. T. and Lopes, J. H.},
year = {2020},
doi = {10.1103/PhysRevApplied.13.014062},
journal   = {Physical Review Applied}
}