{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Database Theory","author_name":"David M. Kroenke ZHU","thumbnail_url":"https://www.ebooknetworking.net/books/730/210/big7302105812.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-7302105812.html\">Database Theory</a>","width":400,"height":300}