{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The second All-Russian Olympiad in mathematics","author_name":"Dmitri Thoro","thumbnail_url":"https://www.ebooknetworking.net/books/B00/07J/bigB0007JJKTQ.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0007JJKTQ.html\">The second All-Russian Olympiad in mathematics</a>","width":400,"height":300}