. "5"^^ . . . . "Evaluation of black shales in Burkina Faso as a possible source of energy." . "Praha" . . "Evaluation of black shales as a source of energy in Burkina Faso and environmental impacts of their possible combustion \u2013 Final Report for 2002" . . "Evaluation of black shales in Burkina Faso as a possible source of energy."@en . "0"^^ . "Evaluation of black shales as a source of energy in Burkina Faso and environmental impacts of their possible combustion \u2013 Final Report for 2002"@en . . "[0B8CAFB47C15]" . "Evaluation of black shales as a source of energy in Burkina Faso and environmental impacts of their possible combustion \u2013 Final Report for 2002" . . "0"^^ . "Evaluation of black shales as a source of energy in Burkina Faso and environmental impacts of their possible combustion \u2013 Final Report for 2002"@en . "4"^^ . . . "Z(MZP:N03/98:00)" . . "RIV/00025798:_____/03:00000292!RIV/2004/MZP/N03004/N" . "90"^^ . . "606379" . . . "Neuveden" . "Pa\u0161ava, Jan" . "\u010Cesk\u00E1 geologick\u00E1 slu\u017Eba" . . "RIV/00025798:_____/03:00000292" . "black shales, source of energy, Burkina Faso"@en .