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~~~ ~~ ~u .,w~ ~o ti~ John r Rb~l Jr FFl1( N0. 3032788183 P, 12
<br />"li" Seam/Bear Creek impact Page 12 ~?rtembar 21, 1990
<br />REFERENCES
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<br />ALul, Jr., J.F., 1990, Rock mechanlca, rtn321 handouts: unpublished
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<br />Abel, Jr., J.F., 1998, Predicted "D" Seam longwall subsidence:
<br />Consulting report ror oxbow Carbon and Minerals, Inc., 61 p, 11
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<br />Abel, Jr., J.F. i F.T. Lee, 1984, LithologiC controls on subsi-
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<br />Babcock, C.o. s V.E. Hooker, 1977, Results of research to develop
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<br />U.S. Bureau 0f Mines Info Circ 8741, 17 p
<br />Caterpillar, irc., 1987, Caterpillar performance handbook: p 790
<br />Dunrud, C.R., 1976, Some engineering geologic !actors eontrollinq -
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<br />39 p
<br />Gray, R.6., R.W. Bruhn i R.J. Turks, 1977, Study and analysis of
<br />surface subsidence over the minwA vtttaburgh coalbod: Dept of
<br />Coma;erce NTIS PB-281 511, 362 p
<br />Moore, A.C. 6 M.A. Nawrocki, 1980, Effects of subsidence from
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<br />PH80-219280, 242 p -"
<br />Xendorski, F.S., I. Kho91a ~ M.M. Singh, 1979, Criteria for deter-
<br />minirq when a body o! eurfac• water constitutes a hazard to
<br />mining: Dept of Commerce NTIS PB81-194938, 364 p
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<br />R~~k Mecti Mict 9clr v 0, p '541-SDb
<br />S(eate, C.J. r D.x. vR:lttaker, 1979, InrluenCe 01 proximity of
<br />longwall miniiiq on strata permeability and groundwater: 20th
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