APA

Kretschmann J., Efremenkov А. В. & Khoreshok A. A.From Mining to Post-Mining: The Sustainable Development Strategy of the German Hard Coal Mining Industry. : .

Chicago

Kretschmann J, Efremenkov А В and Khoreshok A A.From Mining to Post-Mining: The Sustainable Development Strategy of the German Hard Coal Mining Industry. : .

Harvard

Kretschmann J., Efremenkov А. В. and Khoreshok A. A.From Mining to Post-Mining: The Sustainable Development Strategy of the German Hard Coal Mining Industry. : .

MLA

Kretschmann J, Efremenkov А В and Khoreshok A A.: . .