1. Recent progress in coal structure research;Haenel;Fuel,1992
2. Considering non-power generation uses of coal in the United States;Gagarin;Renew. Sustain. Energy Rev.,2020
3. Coal in a New Carbon Age: Powering a Wave of Innovation in Advanced Products & Manufacturing;Atkins,2019
4. Classification of Coals by Rank,2019
5. Characterization of chemical functional groups in macerals across different coal ranks via micro-FTIR spectroscopy;Chen,2012