{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Fifty Lectures for  American Mathematics Competitions Problems Book 2","author_name":"Guiling Chen, Yongcheng Chen","thumbnail_url":"https://www.ebooknetworking.net/books/148/200/big1482005794.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1482005794.html\">Fifty Lectures for  American Mathematics Competitions Problems Book 2</a>","width":400,"height":300}