{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Formulas and Tables for the Calculation of the Inductance of Coils of Polygonal Form: Scientific Papers of the Bureau of Standards, Vol. 235","author_name":"F. W. Grover","thumbnail_url":"https://www.ebooknetworking.net/books/128/722/big1287220509.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1287220509.html\">Formulas and Tables for the Calculation of the Inductance of Coils of Polygonal Form: Scientific Papers of the Bureau of Standards, Vol. 235</a>","width":400,"height":300}