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An investigation of the relationship between strata convergence and the resistance developed by powered supports at longwall coalfaces

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1. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.255720

Identifer	oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:255720
Date	January 1983
Creators	Denning, H. J.
Publisher	Cardiff University
Source Sets	Ethos UK
Detected Language	English
Type	Electronic Thesis or Dissertation