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Growing Division of Alfalfa (Medicago sativa) Sowed on Tang-Shan is analytical by Means of TOPSIS
高桂芹 王秀玲 郑艳萍 陈燕
Chinese Agricultural Science Bulletin . 2010, (17): 378 -381 .  DOI: 10.11924/j.issn.1000-6850.2010-0678