APA (7th ed.) Citation

Xiang, X., & Long, J. (2026). A problem of Heittokangas-Ishizaki-Tohge-Wen concerning a certain differential-difference equation.

Chicago Style (17th ed.) Citation

Xiang, Xuxu, and Jianren Long. A Problem of Heittokangas-Ishizaki-Tohge-Wen Concerning a Certain Differential-difference Equation. 2026.

MLA (9th ed.) Citation

Xiang, Xuxu, and Jianren Long. A Problem of Heittokangas-Ishizaki-Tohge-Wen Concerning a Certain Differential-difference Equation. 2026.