1. Hesselmann, N.
, 1978, “Investigation of Noise Reduction on a 100 KVA Transformer Tank by Means of Active Methods,” Appl. Acoust. 11, pp. 27–34.
2. Angevine, O. L., 1981, “Active Acoustic Attenuation of Electric Transformer Noise,” Proceedings of InterNoise, pp. 303–306.
3. Angevine, O. L., 1992, “Active Cancellation of the Hum of Large Electrical Transformers,” Proceedings InterNoise 92, Toronto, pp. 313–316.
4. Angevine, O. L., 1993, “Active Control of Hum from Large Power Transformers: The Real World,” Proceedings of the 2nd Conference on Recent Advances in Active Control of Sound and Vibration, pp. 279–290.
5. Angevine, O. L.
, 1995, “Active Systems for Attenuation of Noise,” International Journal of Active Control 1, pp. 65–78.