{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Quantum Theory of Planck, Einstein, Bohr and Sommerfeld: Its Foundation and the Rise of Its Difficulties 1900-1925 (The Historical Development of Quantum Theory)","author_name":"Jagdish Mehra, Helmut Rechenberg","thumbnail_url":"https://www.ebooknetworking.net/books/038/795/big038795175X.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-038795175X.html\">The Quantum Theory of Planck, Einstein, Bohr and Sommerfeld: Its Foundation and the Rise of Its Difficulties 1900-1925 (The Historical Development of Quantum Theory)</a>","width":400,"height":300}