APA citáció

Zhou Zhengxin & Romanovski Valery G. (2018). The center problem and the composition condition for a family of quartic differential systems.

Chicago Style (17th ed.) Citation

Zhou Zhengxin and Romanovski Valery G. The Center Problem and the Composition Condition for a Family of Quartic Differential Systems. 2018.

MLA idézés

Zhou Zhengxin and Romanovski Valery G. The Center Problem and the Composition Condition for a Family of Quartic Differential Systems. 2018.