Bougoffa, Lazhar, Randolph Rach, and Abdul-Majid Wazwaz. “On Solutions of Boundary Value Problem for Fourth-Order Beam Equations”. Mathematical Modelling and Analysis 21, no. 3 (May 19, 2016): 304-318. Accessed December 22, 2024. https://journals.vilniustech.lt/index.php/MMA/article/view/815.