search query: @indexterm Fertilizers / total: 11
references: 10-11 / 11
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title | year | author | ||
10. |
Fortune
1980 : APR 7, VOL. 101:7, p. 48-51 |
1980 | Smith, L. |
|
11. |
European Journal of Operational Research
1979 : NOV, VOL. 3:6, p. 464-473 |
1979 | Maennig, H. G. |
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