@incollection{Ji12,
author = {Changsheng Ji},
title = {Surface Coal Mining Methods in China},
booktitle = {Mining Methods},
publisher = {IntechOpen},
address = {Rijeka},
year = {2012},
editor = {Turgay Onargan},
chapter = {2},
doi = {10.5772/35061},
url = {https://doi.org/10.5772/35061}
}