APA (7th ed.) Citation

Zhou, Z. A New Method for Research on the Center-Focus Problem of Differential Systems. Wiley.

Chicago Style (17th ed.) Citation

Zhou, Zhengxin. A New Method for Research on the Center-Focus Problem of Differential Systems. Wiley.

MLA (9th ed.) Citation

Zhou, Zhengxin. A New Method for Research on the Center-Focus Problem of Differential Systems. Wiley.

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