Soares Lima, R. C., M. Brown Do Coutto Filho, J. C. Stachinni de Souza, and F. Protti. “Topological Approach for Identifying Critical Measurements and Sets in State Estimation”. IEEE Latin America Transactions, vol. 20, no. 1, Sept. 2021, pp. 100-7, https://latamt.ieeer9.org/index.php/transactions/article/view/5145.