Partners in need : the strategic relationship of Russia and Iran

von Shaffer, Brian N.
Veröffentlicht 2001

THE YAMPA COALFIELD NORTHWESTERN COLORADO USA- A WESTERN U.S. ANALOGUE OF THE APPALACHIAN FIRE CLAY COAL?

von Kolker, Allan
Veröffentlicht in International Pittsburgh Coal Conference (36. : 2019 : Pittsburgh, Pa.) Clean coal-based energy/fuels and the environment ; Volume 1 of 2 (2020)