{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Advanced calculus. Functions of several variables.","author_name":"Roman. Sikorski","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B007T08UBK.html\">Advanced calculus. Functions of several variables.</a>","width":400,"height":300}