@article{article, title = {{Non-linear systems in the frequency domain: energy transfer filters}}, url = {{}}, year = {{2002}}, month = {{9}}, author = {{Billings SA and Lang ZQ}}, doi = {{10.1080/00207170210157575}}, volume = {{75}}, journal = {{INT J CONTROL}}, issue = {{14}}, pages = {{1066-1081}}, note = {{Accessed on 2024/12/22}}}