@incollection{Tsitsas11, author = {Nikolaos L. Tsitsas}, title = {Inverse Scattering in the Low-Frequency Region by Using Acoustic Point Sources}, booktitle = {Waves in Fluids and Solids}, publisher = {IntechOpen}, address = {Rijeka}, year = {2011}, editor = {Ruben Pico Vila}, chapter = {11}, doi = {10.5772/21820}, url = {https://doi.org/10.5772/21820} }