@incollection{Alshits11,
author = {V. I. Alshits and V. N. Lyubimov and A. Radowicz},
title = {Topological Singularities in Acoustic Fields due to Absorption of a Crystal},
booktitle = {Acoustic Waves},
publisher = {IntechOpen},
address = {Rijeka},
year = {2011},
editor = {Marco G. Beghi},
chapter = {2},
doi = {10.5772/22634},
url = {https://doi.org/10.5772/22634}
}