{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Discrete Mathematics: An Open Introduction","author_name":"Oscar Levin","thumbnail_url":"https://www.ebooknetworking.net/books/151/692/big1516921186.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1516921186.html\">Discrete Mathematics: An Open Introduction</a>","width":400,"height":300}