Brett Ninness, Fredrik Gustafsson. A unifying construction of orthonormal bases for system identification. IEEE Trans. Automat. Contr., 42(4):515-521, 1997. [doi]
@article{NinnessG97,
title = {A unifying construction of orthonormal bases for system identification},
author = {Brett Ninness and Fredrik Gustafsson},
year = {1997},
doi = {10.1109/9.566661},
url = {https://doi.org/10.1109/9.566661},
researchr = {https://researchr.org/publication/NinnessG97},
cites = {0},
citedby = {0},
journal = {IEEE Trans. Automat. Contr.},
volume = {42},
number = {4},
pages = {515-521},
}