{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Vorlesungen über Nicht-Euklidische Geometrie (Grundlehren der mathematischen Wissenschaften) (German Edition)","author_name":"Felix Klein","thumbnail_url":"https://www.ebooknetworking.net/books/364/295/big3642950272.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-3642950272.html\">Vorlesungen über Nicht-Euklidische Geometrie (Grundlehren der mathematischen Wissenschaften) (German Edition)</a>","width":400,"height":300}