Zhang, L. F., Zhu, Q. and Longden, A.
A correlation-test-based validation procedure for identified neural networks.
IEEE Transactions on Neural Networks, 20 (1).
Available from: http://eprints.uwe.ac.uk/12576
Zhu, Q., Feng Zhang, L. and Longden, A.
Development of omni-directional correlation functions for nonlinear model validation.
Automatica, 43 (9).
Available from: http://eprints.uwe.ac.uk/18951