@conference{arfib1978digital, title = {Digital Synthesis of Complex Spectra by Means of Multiplication of Non Linear Distorted Sine Waves}, author = {Arfib, Daniel}, booktitle = {Audio Engineering Society Convention 59}, month = {Feb}, year = {1978}, url = {https://www.aes.org/e-lib/browse.cfm?elib=3035} }