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Schuman, G. E.
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1997
D. L. Karlen
,
Mausbach, M. J.
,
Doran, J. W.
,
Cline, R. G.
,
Harris, R. F.
, and
Schuman, G. E.
,
“
Soil Quality: A Concept, Definition, and Framework for Evaluation (A Guest Editorial)
”
,
Soil Sci Soc Am J
, vol. 61, pp. 4-10, 1997.
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