{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Mathematical Excursions to the World's Great Buildings","author_name":"Alexander J. Hahn","thumbnail_url":"https://www.ebooknetworking.net/books/069/114/big0691145202.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0691145202.html\">Mathematical Excursions to the World&#039;s Great Buildings</a>","width":400,"height":300}