An analysis of roof-pillar-weak floor interaction in partial extraction room and pillar mining.
By: W. M. Pytel and Y. P. Chugh.
Contributors: Chugh, Yoginder P.
Publisher: s.n
Published: 1990
Place of publication: S.l
Notes: In A. W. Khair (ed). Proc. 30th Symp. Rock Mechanics as a Guide for Efficient Utilization of Natural Resources. WV. 1000pp.

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