{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The operator formalism in quantum perturbation theory","author_name":"Bryce S. DeWitt","thumbnail_url":"https://www.ebooknetworking.net/books/B00/3YM/bigB003YMME2I.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B003YMME2I.html\">The operator formalism in quantum perturbation theory</a>","width":400,"height":300}