{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Principles of Database and Knowledge-Base Systems Vol. 2: The New Technologies","author_name":"Jeffrey D. Ullman","thumbnail_url":"https://www.ebooknetworking.net/books/071/678/big071678162X.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-071678162X.html\">Principles of Database and Knowledge-Base Systems Vol. 2: The New Technologies</a>","width":400,"height":300}