{"product_id":"gardner-martin-penrose-tiles-to-trapdoor-ciphers-and-the-return-of-dr-matrix-maa-spectrum-9780883855218","title":"Penrose Tiles to Trapdoor Ciphers: And the Return of Dr. Matrix (Maa Spectrum)","description":null,"brand":"Mathematical Association of America","offers":[{"title":"Used - good","offer_id":53599389811030,"sku":"9780883855218-G","price":12.49,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0925\/5829\/5382\/files\/product_image_9780883855218_1_30e7247f-79a1-44be-b850-3e584b4638e3.jpg?v=1781720134","url":"https:\/\/www.momoxbooks.com\/products\/gardner-martin-penrose-tiles-to-trapdoor-ciphers-and-the-return-of-dr-matrix-maa-spectrum-9780883855218","provider":"momoxbooks","version":"1.0","type":"link"}