@conference{pena2001realtime, title = {Realtime implementations of MPEG-2 and MPEG-4 natural audio coders}, author = {Pena, Antonio and Alexandre, Enrique and Rivas, Begona and Perez, Rafael and Duenas, Alberto}, booktitle = {Audio Engineering Society Convention 110}, month = {May}, year = {2001}, url = {https://www.aes.org/e-lib/browse.cfm?elib=9936} }