Related papers: Nonlinear System Identification and Behavioral Mod…

This paper has been withdrawn by the author, due to a significant error in section 4.3.1.

This paper is withdrawn.

This paper has been withdrawn by the author, due an error in claim 1.

This paper has been withdrawn by the author, due to errors in the figures.

This paper has been withdrawn by the author.

This paper has been withdrawn.

The paper has been withdrawn

This paper is withdrawn because the results in the paper are included in a paper to be published in Mathematical and Computer Modelling.

This paper has been withdrawn.

This paper was withdrawn by the authors.

This paper has been withdrawn

This paper has been withdrawn by the author.

This paper has been withdrawn by the authors.

This paper has been withdrawn by the author

This paper has been withdrawn by the author

This paper has been withdrawn by the author due to a crucial error.

This paper has been withdrawn.

This paper has been withdrawn

This paper has been withdrawn by the author: it was a too preliminary version.

This paper has been withdrawn.