APA (7th ed.) Citation

Fan, W., Hao, X., Liu, L., & Wu, Y. H. (2011). Nontrivial solutions of singular fourth-order Sturm–Liouville boundary value problems with a sign-changing nonlinear term. Elsevier Inc.

Chicago Style (17th ed.) Citation

Fan, W., X. Hao, L. Liu, and Yong Hong Wu. Nontrivial Solutions of Singular Fourth-order Sturm–Liouville Boundary Value Problems with a Sign-changing Nonlinear Term. Elsevier Inc, 2011.

MLA (9th ed.) Citation

Fan, W., et al. Nontrivial Solutions of Singular Fourth-order Sturm–Liouville Boundary Value Problems with a Sign-changing Nonlinear Term. Elsevier Inc, 2011.