@article{burred2004hierarchical, title = {Hierarchical Automatic Audio Signal Classification}, author = {Burred, Juan José and Lerch, Alexander}, journal = {J. Audio Eng. Soc}, volume = {52}, number = {7/8}, pages = {724--739}, year = {2004}, url = {https://www.aes.org/e-lib/browse.cfm?elib=13015} }