APA citáció

Guo Yingxin. (2009). New results on the positive solutions of nonlinear second-order differential systems.

Chicago Style (17th ed.) Citation

Guo Yingxin. New Results on the Positive Solutions of Nonlinear Second-order Differential Systems. 2009.

MLA idézés

Guo Yingxin. New Results on the Positive Solutions of Nonlinear Second-order Differential Systems. 2009.

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