APA (7th ed.) Citation

Ma, L., Liu, C., & Zhao, G. Study on Coal Pillar Setting and Stability in Downward Mining Section of Close Distance Coal Seam. MDPI AG.

Chicago Style (17th ed.) Citation

Ma, Longpei, Chongyan Liu, and Guangming Zhao. Study on Coal Pillar Setting and Stability in Downward Mining Section of Close Distance Coal Seam. MDPI AG.

MLA (9th ed.) Citation

Ma, Longpei, et al. Study on Coal Pillar Setting and Stability in Downward Mining Section of Close Distance Coal Seam. MDPI AG.