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The methods we use and the results we obtain are new. <\/jats:p>","DOI":"10.1142\/s0218127414500047","type":"journal-article","created":{"date-parts":[[2014,2,20]],"date-time":"2014-02-20T06:27:33Z","timestamp":1392877653000},"page":"1450004","source":"Crossref","is-referenced-by-count":14,"title":["Bifurcation of Limit Cycles in Small Perturbation of a Class of Li\u00e9nard Systems"],"prefix":"10.1142","volume":"24","author":[{"given":"Xianbo","family":"Sun","sequence":"first","affiliation":[{"name":"Department of Information and Statistics, Guangxi University of Finance and Economics, Nanning, Guangxi 530003, P. R. China"}]},{"given":"Hongjian","family":"Xi","sequence":"additional","affiliation":[{"name":"Department of Information and Statistics, Guangxi University of Finance and Economics, Nanning, Guangxi 530003, P. R. China"}]},{"given":"Hamid R. 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