{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Art of Computer Programming, Volume 4, Fascicle 4: Generating All Trees--History of Combinatorial Generation","author_name":"Donald E. Knuth","thumbnail_url":"https://www.ebooknetworking.net/books/032/133/big0321335708.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0321335708.html\">Art of Computer Programming, Volume 4, Fascicle 4: Generating All Trees--History of Combinatorial Generation</a>","width":400,"height":300}