GRIGELIONIS, B. On stochastic equations for nonlinear filtering problem of stochastic processes. Lithuanian Mathematical Journal, [S. l.], v. 12, n. 4, p. 37–51, 1972. DOI: 10.15388/LMJ.1972.21151. Disponível em: https://www.journals.vu.lt/LMJ/article/view/21151.. Acesso em: 1 may. 2024.