Underground coal gasification

https://www.wikidata.org/wiki/Q2571404

Field Hierarchy

Parent
Chemistry 28.9M papers	Engineering 25M papers	Geography 13.2M papers	Organic chemistry 12.9M papers
History 8M papers	Archaeology 6.9M papers	Waste management 1.6M papers	Coal 287k papers
Coal mining 93.7k papers		Coal gasification 8,893 papers
Current
Underground coal gasification 1,611 papers
Child

Trends

Notes

History