@article{articlefc108a72,
title   = {Exact search directions for optimization of linear and nonlinear models based on generalized orthonormal functions},
author = {Rosa, Alex da and Campello, Ricardo José Gabrielli Barreto and Amaral, Wagner C},
year = {2009},
doi = {10.1109/TAC.2009.2031721},
journal   = {IEEE Transactions on Automatic Control}
}