{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Functions of several variables","author_name":"B. Craven","thumbnail_url":"https://www.ebooknetworking.net/books/041/223/big0412233401.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0412233401.html\">Functions of several variables</a>","width":400,"height":300}