{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Lehrbuch der Darstellenden Geometrie (Lehrbücher und Monographien aus dem Gebiete der exakten Wissenschaften) (German Edition)","author_name":"Eduard L. Stiefel","thumbnail_url":"https://www.ebooknetworking.net/books/303/484/big3034840985.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-3034840985.html\">Lehrbuch der Darstellenden Geometrie (Lehrbücher und Monographien aus dem Gebiete der exakten Wissenschaften) (German Edition)</a>","width":400,"height":300}