{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Darstellende Geometrie...: Teil. Perspektive Ebener Gebilde; Kegel Schnitte (German Edition)","author_name":"Robert Karl Hermann Haussner","thumbnail_url":"https://www.ebooknetworking.net/books/114/436/big1144367409.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1144367409.html\">Darstellende Geometrie...: Teil. Perspektive Ebener Gebilde; Kegel Schnitte (German Edition)</a>","width":400,"height":300}