@incollection{Piper11,
author = {John E. Piper},
title = {Beamforming Narrowband and Broadband Signals},
booktitle = {Sonar Systems},
publisher = {IntechOpen},
address = {Rijeka},
year = {2011},
editor = {N. Z. Kolev},
chapter = {4},
doi = {10.5772/18445},
url = {https://doi.org/10.5772/18445}
}