DUBINSKII, J. Pseudodifferential operators with complex arguments and Cauchy problem. Mathematical Modelling and Analysis, [S. l.], v. 1, n. 1, p. 15, 1996. DOI: 10.3846/13926292.1996.9637041. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/10028. Acesso em: 9 may. 2025.