{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Walk Through Combinatorics","author_name":"Miklos Bona","thumbnail_url":"https://www.ebooknetworking.net/books/981/024/big9810249004.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-9810249004.html\">A Walk Through Combinatorics</a>","width":400,"height":300}