@article{article, title = {{An investigation into the characteristics of non-linear frequency response functions. Part 1: Understanding the higher dimensional frequency spaces}}, url = {{}}, year = {{2005}}, month = {{9}}, author = {{Yue R and Billings SA and Lang ZQ}}, doi = {{10.1080/00207170500144417}}, volume = {{78}}, journal = {{INT J CONTROL}}, issue = {{13}}, pages = {{1031-1044}}, note = {{Accessed on 2024/09/20}}}