{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Problem-Solving Methods in Combinatorics: An Approach to Olympiad Problems","author_name":"Pablo Soberón","thumbnail_url":"https://www.ebooknetworking.net/books/303/480/big3034805969.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-3034805969.html\">Problem-Solving Methods in Combinatorics: An Approach to Olympiad Problems</a>","width":400,"height":300}