{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"IEC 61094-4 Ed. 1.0 b:1995, Measurement microphones - Part 4: Specifications for working standard microphones","author_name":"IEC TC/SC 29","thumbnail_url":"https://www.ebooknetworking.net/books/B00/0Y2/bigB000Y2LR1A.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B000Y2LR1A.html\">IEC 61094-4 Ed. 1.0 b:1995, Measurement microphones - Part 4: Specifications for working standard microphones</a>","width":400,"height":300}