{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Ordinary Differential Equations and Calculus of Variations: Book of Problems","author_name":"M. V. Makarets, V. Yu Reshetnyak","thumbnail_url":"https://www.ebooknetworking.net/books/981/022/big9810221916.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-9810221916.html\">Ordinary Differential Equations and Calculus of Variations: Book of Problems</a>","width":400,"height":300}