APA (7th ed.) Citation

Chungen, L., & Yuyou, Z. Existence and multiplicity results for non-autonomous second-order Hamiltonian systems. De Gruyter.

Chicago Style (17th ed.) Citation

Chungen, Liu, and Zhong Yuyou. Existence and Multiplicity Results for Non-autonomous Second-order Hamiltonian Systems. De Gruyter.

MLA (9th ed.) Citation

Chungen, Liu, and Zhong Yuyou. Existence and Multiplicity Results for Non-autonomous Second-order Hamiltonian Systems. De Gruyter.

Warning: These citations may not always be 100% accurate.