Zhao, H., & Chen, J. A Numerical Study of Railway Ballast Subjected to Direct Shearing Using the Discrete Element Method. Wiley.
Chicago Style (17th ed.) CitationZhao, Hongyi, and Jing Chen. A Numerical Study of Railway Ballast Subjected to Direct Shearing Using the Discrete Element Method. Wiley.
MLA (9th ed.) CitationZhao, Hongyi, and Jing Chen. A Numerical Study of Railway Ballast Subjected to Direct Shearing Using the Discrete Element Method. Wiley.
Warning: These citations may not always be 100% accurate.