Rahmane, Mebrouk, Moussadek Remili, and Linda D. Oudjedi. (2019) 2022. “Stability, Boundedness, and Square Integrability of Solutions of Neutral Fourth-Order Differential Equations”. Armenian Journal of Mathematics 11 (10): 1-17. https://doi.org/10.52737/18291163-2019.11.10-1-17.