Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Timbering in English mines
Methods of timbering in longwall workings. Steel and concrete are used as substitutes in roof support.
Timbering in English mines
Methods of timbering in longwall workings. Steel and concrete are used as substitutes in roof support.
Timbering in English mines
Coal Age
Coal Age ; 15
1919
4 pages
8 Figs.
Aufsatz (Zeitschrift)
Englisch
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