Valgma, I (2000). Post-stripping processes and the landscape of mined areas in Estonian oil shale open casts. Oil Shale, 17(2), 201 - 212.: ""
Wacker shows off new models at ConExpo - KHL Group
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Wacker shows off new models at ConExpo - KHL Group:
Mining links, Mineral resources, Mining Engineering, Education, Facts,
Equipment
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