Atta Mills, E. F. E., Zeng, K., Fangbiao, L., & Fangyan, L. (2021). Modeling innovation efficiency, its micro-level drivers, and its impact on stock returns. Chaos, Solitons and Fractals: the interdisciplinary journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena, 152, . https://doi.org/10.1016/j.chaos.2021.111303

Atta Mills, Ebenezer Fiifi Emire, Kailin Zeng, Liu Fangbiao, and Li Fangyan. "Modeling Innovation Efficiency, Its Micro-level Drivers, and Its Impact on Stock Returns." Chaos, Solitons and Fractals: The Interdisciplinary Journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena 152 (2021). https://doi.org/10.1016/j.chaos.2021.111303.

Atta Mills, Ebenezer Fiifi Emire, et al. "Modeling Innovation Efficiency, Its Micro-level Drivers, and Its Impact on Stock Returns." Chaos, Solitons and Fractals: The Interdisciplinary Journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena, vol. 152, 2021, https://doi.org/10.1016/j.chaos.2021.111303.