geokb

(Q41404)

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Statements

subclass of
coal
6 references
knowledge source
The Geoscience Ontology reference
reference statement
Economic commission for Europe, committee on Sustainable Energy- United Nations (ECE-UN), 1998, International Classification of in-Seam Coals: Energy 19, 41 pp
reference URL
http://en.wikipedia.org/wiki/Coal
reference statement
Eberhard Lindner
reference statement
Chemie für Ingenieure
reference statement
Lindner Verlag Karlsruhe, S. 258
OpenAlex ID
C2911204943
0 references
 
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