{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Elementary Differential Geometry","author_name":"Christian Bär","thumbnail_url":"https://www.ebooknetworking.net/books/052/172/big0521721490.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0521721490.html\">Elementary Differential Geometry</a>","width":400,"height":300}