Li, C., Yang, Y., Zhou, B., Wang, K., He, Y., & Zhao, S. Preparation and properties of pea-gravel grouting with sodium bentonite for hydraulic shield tunnel. Nature Portfolio.
Chicago Style (17th ed.) CitationLi, Changyong, Yabin Yang, Bo Zhou, Kele Wang, Yintao He, and Shunbo Zhao. Preparation and Properties of Pea-gravel Grouting with Sodium Bentonite for Hydraulic Shield Tunnel. Nature Portfolio.
MLA (9th ed.) CitationLi, Changyong, et al. Preparation and Properties of Pea-gravel Grouting with Sodium Bentonite for Hydraulic Shield Tunnel. Nature Portfolio.
Warning: These citations may not always be 100% accurate.