@Book{1730522920,
title="Application of the United Nations Framework Classification for Resources: case studies",
series="UNECE energy series no. 58",
year="2019",
publisher="United Nations",
address="Geneva",
keywords="Rohstoff; Rohstoffvorkommen; Klassifikation; Welt",
note="United Nations Economic Commission for Europe",
isbn="9789211172218",
language="English"
}