Study on the Law of Surface Air Leakage in Shallow Coal Seam Gob Based on Dual-element Tracing Technology
叶庆树, 戴广龙, 李鹏, 唐明云, 聂士斌, 宋小林
Coal Engineering . 2020, (7): 83 -87 .  DOI: 10.11799/ce202007019