1. Aguirre, L.A. (2017) Introduction to System Identification–Linear and Nonlinear Techniques, available from http://www.cpdee.ufmg.br/~aguirre/livro/livro.htm [01/03/2017]./In Portuguese/.
2. On the interpretation and practice of dynamical differences between Hammerstein and Wiener models;Aguirre;IEE Proceedings on Control Theory and Applications,2005
3. Nonlinearities in NARX polynomial models: representation and estimation;Aguirre;IEE Proceedings on Control Theory and Applications,2002
4. Cassini, C.C.S. (1999). Recursive estimation of nonlinear static characteristics using polynomial NARMAX models, MSc Thesis, Federal University of Minas Gerais./In Portuguese/.
5. Orthogonal least square methods and their application;Chen;International Journal of Control,1989