Radio propagation at 900 MHz in underground coal mines

by Sheng, J. H., Zhang, Yue Ping, Zheng, Guo Xin
Published 2009

Measurements of the propagation of UHF radio waves on an underground railway train

by Zhang, Yue Ping, Jiang, Z. R., Ng, Tung Sang, Sheng, J. H.
Published 2010