Yang, Y., & Zhang, Y. Research on the Technology of Small Coal Pillars of Gob-Side Entry Retained in Deep Mines Based on the Roof Cutting for Pressure Unloading in the Lower Key Stratum. Wiley.
Chicago Style (17th ed.) CitationYang, Yongjie, and Yang Zhang. Research on the Technology of Small Coal Pillars of Gob-Side Entry Retained in Deep Mines Based on the Roof Cutting for Pressure Unloading in the Lower Key Stratum. Wiley.
MLA (9th ed.) CitationYang, Yongjie, and Yang Zhang. Research on the Technology of Small Coal Pillars of Gob-Side Entry Retained in Deep Mines Based on the Roof Cutting for Pressure Unloading in the Lower Key Stratum. Wiley.
Warning: These citations may not always be 100% accurate.