%0 Journal Article
%T AVERAGING METHODS OF MULTI-FREQUENCY HOPF BIFURCATION IN NONLINEAR VIBRATION SYSTEMS<br>
%J 科学通报(英文版)
%D 1987
%I 
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=5BBA8E456140854014E2C84E64D9B28D&yid=9C2DB0A0D5ABE6F8&vid=9971A5E270697F23&iid=E158A972A605785F&sid=03E56C113B4E5A88&eid=03E56C113B4E5A88&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=0