{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Über die partielle Differential-Gleichung [Delta]v+k²v=0 und deren Auftreten in der mathematischen Physik (German Edition)","author_name":"F. Pockels","thumbnail_url":"https://www.ebooknetworking.net/books/142/970/big1429705205.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1429705205.html\">Über die partielle Differential-Gleichung [Delta]v+k²v=0 und deren Auftreten in der mathematischen Physik (German Edition)</a>","width":400,"height":300}