{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Differential Geometry:  Curves - Surfaces - Manifolds","author_name":"Wolfgang Kuhnel","thumbnail_url":"https://www.ebooknetworking.net/books/082/182/big0821826565.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0821826565.html\">Differential Geometry:  Curves - Surfaces - Manifolds</a>","width":400,"height":300}