{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Vorlesungen Ãœber Das Pfaff'sche Problem Und Die Theorie Der Partiellen Differentialgleichungen Erster Ordnung (German Edition)","author_name":"Eduard Von Weber","thumbnail_url":"https://www.ebooknetworking.net/books/114/874/big1148741380.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1148741380.html\">Vorlesungen Ãœber Das Pfaff&#039;sche Problem Und Die Theorie Der Partiellen Differentialgleichungen Erster Ordnung (German Edition)</a>","width":400,"height":300}