Nonlinear Estimation of Incident Solar Irradiance on Finland Using Discrete-time Extended Kalman Smoothers. Journal of Technology Research, [S. l.], v. 1, n. 1, p. 53–60, 2023. DOI: 10.26629/jtr.2023.05. Disponível em: https://jtr.cit.edu.ly/ojs/index.php/jtr/article/view/44. Acesso em: 13 oct. 2025.