{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Euler's Gem: The Polyhedron Formula and the Birth of Topology","author_name":"David S. Richeson,","thumbnail_url":"https://www.ebooknetworking.net/books/069/112/big0691126771.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0691126771.html\">Euler&#039;s Gem: The Polyhedron Formula and the Birth of Topology</a>","width":400,"height":300}