HEITTOKANGAS, J.; KORHONEN, R.; RÄTTYÄ, J. Growth estimates for solutions of nonhomogeneous linear complex differential equations. Annales Fennici Mathematici, [S. l.], v. 34, n. 1, p. 145–156, 2009. Disponível em: https://afm.journal.fi/article/view/135257. Acesso em: 9 may. 2024.