{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Semi-Groups of Operators and Approximation (Grundlehren der mathematischen Wissenschaften)","author_name":"Paul Leo Butzer, Hubert Berens","thumbnail_url":"https://www.ebooknetworking.net/books/364/246/big3642460682.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-3642460682.html\">Semi-Groups of Operators and Approximation (Grundlehren der mathematischen Wissenschaften)</a>","width":400,"height":300}