1
Steinkohlenbergbau: Steinkohle als Grundstoff, Energieträger und Umweltfaktor.
Book
...EEA - Coal - general...
2
Economic geology: coal, oil and gas : Congres international de stratigraphie et geologie du carbonifere ; 0009, vol 04 : compte rendu : International congress on carboniferous stratigraphy and geology 0009, vol 04, Washington, DC, Urbana-Champaign, IL, 17.05.79-26.05.79. /
Book
3
Sedimentology of coal and coal bearing sequences : Sedimentology: international congress 0011 : Coal and coal bearing sequences: symposium : Hamilton, 08.82.
Book