Ricco, R. A., A. Verly, M. V. de Paula, and B. O. S. Teixeira. “Subspace Identification of Linear Systems With Partial Eigenvalue Constraints”. IEEE Latin America Transactions, vol. 17, no. 2, Oct. 2019, pp. 288-96, https://latamt.ieeer9.org/index.php/transactions/article/view/1834.