Study on the remediation effect of biochar on heavy metals in coal gangue-contaminated soil
by Xu Xiuyue Jun Ren Wang Ningning Dong Huiling Zeng Mingzhen
Tracing dispersed coaly-derived particles in modern sediments: an environmental application of organic petrography
by
Kalaitzidis S., Christanis K., Cornelissen G. and Gustafsson