{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Approaches to the Qualitative Theory of Ordinary Differential Equations: Dynamical Systems and Nonlinear Oscillations (Peking University Series in Mathematics)","author_name":"Ding Tongren","thumbnail_url":"https://www.ebooknetworking.net/books/981/270/big981270468X.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-981270468X.html\">Approaches to the Qualitative Theory of Ordinary Differential Equations: Dynamical Systems and Nonlinear Oscillations (Peking University Series in Mathematics)</a>","width":400,"height":300}