{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Mistakes in Geometric Proofs (Topics in mathematics)","author_name":"Ya. S. Dubnov","thumbnail_url":"https://www.ebooknetworking.net/books/B00/06A/bigB0006AXDI0.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0006AXDI0.html\">Mistakes in Geometric Proofs (Topics in mathematics)</a>","width":400,"height":300}