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Occurrence of Discontinuous deformations of the surface during mining under aquiferous formations in the roof of coal measures (in Polish) : Palki, J Ochrona Terenow Gorn, N45, 1978, P23–27


Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
101 KB
Volume
17
Category
Article
ISSN
0148-9062

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