{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Collected Mathematical Papers, V1","author_name":"George David Birkhoff","thumbnail_url":"https://www.ebooknetworking.net/books/125/881/big1258814110.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1258814110.html\">Collected Mathematical Papers, V1</a>","width":400,"height":300}