APA-Zitierstil (7. Ausg.)

Liu, Z., & Qi, J. (2021). The Properties of Eigenvalues and Eigenfunctions for Nonlocal Sturm–Liouville Problems. Symmetry (Basel), 13(5), 820. https://doi.org/10.3390/sym13050820

Chicago-Zitierstil (17. Ausg.)

Liu, Zhiwen, und Jiangang Qi. "The Properties of Eigenvalues and Eigenfunctions for Nonlocal Sturm–Liouville Problems." Symmetry (Basel) 13, no. 5 (2021): 820. https://doi.org/10.3390/sym13050820.

MLA-Zitierstil (9. Ausg.)

Liu, Zhiwen, und Jiangang Qi. "The Properties of Eigenvalues and Eigenfunctions for Nonlocal Sturm–Liouville Problems." Symmetry (Basel), vol. 13, no. 5, 2021, p. 820, https://doi.org/10.3390/sym13050820.