APA (7th ed.) Citation

Li, T., & Lu, X. (2023). A new definition of upward planar order.

Chicago Style (17th ed.) Citation

Li, Ting, and Xuexing Lu. A New Definition of Upward Planar Order. 2023.

MLA (9th ed.) Citation

Li, Ting, and Xuexing Lu. A New Definition of Upward Planar Order. 2023.

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