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[2]
BERNSTEIN L, 1964, USDA283 AGR INF B
[3]
BETTENAY E., 1964, AUSTRALIAN J SOIL RES, V2, P187, DOI 10.1071/SR9640187
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HALVORSON AD, 1974, J SOIL WATER CONSERV, V29, P77
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1971, 35 (01)
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[8]
1954, USDA60 AGR HDB