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Technology and productivity in bituminous coal, 1949-59
Adams, Robert T., (1961)
Was kann der Steinkohlenbergbau aus eigener Kraft tun, um seine Wettbewerbsfähigkeit zu verbessern?
Anderheggen, Erwin, (1963)
The politics of environmental concern
Rosenbaum, Walter A., (1973)
An M/M/m/n queue for the shortest distance priority machine interference problem
Reynolds, Gary H., (1975)
A Shuttle Car Assignment Problem in the Mining Industry
Reynolds, Gary H., (1971)