Remili M, Rahmane M. Sufficient conditions for the boundedness and square integrability of Solutions of fourth-order differential equations. Proyecciones (Antofagasta, On line) [Internet]. 2017Mar.23 [cited 2024Apr.25];35(1):41-6. Available from: https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/1234