%0 Journal Article %T Uniqueness of limit cycles of quadratic system (Ⅲ) _(m=0) %J 科学通报(英文版) %D 1997 %I %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=76D959B9640716758D9C198984749C5D&yid=5370399DC954B911&vid=ECE8E54D6034F642&iid=5D311CA918CA9A03&sid=3EABEBD973E45554&eid=3EABEBD973E45554&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=0