{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Partial Differential Equations in Physics (Lectures on Theoretical Physics volume vi)","author_name":"Sommerfeld, Arnold","thumbnail_url":"https://www.ebooknetworking.net/books/012/654/big0126546584.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0126546584.html\">Partial Differential Equations in Physics (Lectures on Theoretical Physics volume vi)</a>","width":400,"height":300}