Zeng, Q., Zhu, Y., Yang, Y., Li, Z., & Wan, L. Influence of Coal Caving Time and Tail Beam Swing Angle on the Evolution of the Coal Gangue Boundary Line during Top Coal Caving. Wiley.
Chicago Style (17th ed.) CitationZeng, Qingliang, Yanpeng Zhu, Yang Yang, Zhe Li, and Lirong Wan. Influence of Coal Caving Time and Tail Beam Swing Angle on the Evolution of the Coal Gangue Boundary Line During Top Coal Caving. Wiley.
MLA (9th ed.) CitationZeng, Qingliang, et al. Influence of Coal Caving Time and Tail Beam Swing Angle on the Evolution of the Coal Gangue Boundary Line During Top Coal Caving. Wiley.
Warning: These citations may not always be 100% accurate.