APA (7th ed.) Citation

Chen, C., Xu, J., O’Regan, D., & Fu, Z. Positive Solutions for a System of Semipositone Fractional Difference Boundary Value Problems. Wiley.

Chicago Style (17th ed.) Citation

Chen, Cheng, Jiafa Xu, Donal O’Regan, and Zhengqing Fu. Positive Solutions for a System of Semipositone Fractional Difference Boundary Value Problems. Wiley.

MLA (9th ed.) Citation

Chen, Cheng, et al. Positive Solutions for a System of Semipositone Fractional Difference Boundary Value Problems. Wiley.