{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Differential operators of mathematical physics;: An introduction (Addison-Wesley series in mathematics)","author_name":"Günter Hellwig","thumbnail_url":"https://www.ebooknetworking.net/books/B00/07D/bigB0007DXD7C.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0007DXD7C.html\">Differential operators of mathematical physics;: An introduction (Addison-Wesley series in mathematics)</a>","width":400,"height":300}