Yongjin LI; Yan SHEN. Hyers-Ulam Stability of Nonhomogeneous Linear Differential Equations of Second Order: A Scientific Explanation. Theory and Practice of Mathematics and Computer Science Vol. 9, [S. l.], p. 94–99, 2021. DOI: 10.9734/bpi/tpmcs/v9/2940D. Disponível em: https://stm.bookpi.org/TPMCS-V9/article/view/855. Acesso em: 4 jun. 2026.