{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Wavefronts and Rays: As Characteristics and Asymptotics","author_name":"Andrej Bona, Michael A Slawinski","thumbnail_url":"https://www.ebooknetworking.net/books/981/429/big9814295515.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-9814295515.html\">Wavefronts and Rays: As Characteristics and Asymptotics</a>","width":400,"height":300}