关于椭圆基本性质的讨论

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1673-9329|33|3|170-171

ISSN: 1673-9329

Source: 凯里学院学报, Vol.33, Iss.3, 2015-01, pp. : 170-171

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Abstract