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Acta Agriculturae Boreali-Sinica
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中文
Grey System Forecast of Cotton Yield and Calamity Year in Henan Province
Wang Guifang, Zhang Yaozeng, Shang Hongquan
ACTA AGRICULTURAE BOREALI-SINICA . 1994, (
S1
): 128 -132 . DOI: 10.3321/j.issn:1000-7091.1994.z1.027
