{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Direct Methods in the Calculus of Variations (Applied Mathematical Sciences)","author_name":"Bernard Dacorogna","thumbnail_url":"https://www.ebooknetworking.net/books/038/735/big0387357793.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0387357793.html\">Direct Methods in the Calculus of Variations (Applied Mathematical Sciences)</a>","width":400,"height":300}