Consolidated report / transmitted by the Government of the Federal Republic of Germany.
1984
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Details
Symbol
[E/ECE/]COAL/GE.4/R.23
Title
Consolidated report / transmitted by the Government of the Federal Republic of Germany.
Other titles
Drivage, development and support of roadways and faces in deep mines - 1,000 metres and over - and consequently in more difficult mining, geological and atmospheric conditions : consolidated report
Authors
Date
Geneva : UN, 16 Apr. 1984.
Description
8 p.