Acknowledgements

This chapter is strongly based on the on Notebook 6 (ISBN: 978-9974-0-1540-1) [13] from the series Environmental Acoustics (ISBN: 978-9974-0-1533-3) from the same author. The series comprises nine notebooks. It has been funded by the National Directorate for the Environmental from the Ministry of Housing, Land Ordering and Environment from Uruguay and published as e-books by the Faculty of Engineering from Universidad de la República (Uruguay).
