{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Fractal Music, Hypercards and More...: Mathematical Recreations from Scientific American Magazine","author_name":"Martin Gardner","thumbnail_url":"https://www.ebooknetworking.net/books/071/672/big0716721899.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0716721899.html\">Fractal Music, Hypercards and More...: Mathematical Recreations from Scientific American Magazine</a>","width":400,"height":300}