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Magazine I spy game printable: 2 fun ways to play!

Here’s a fun I Spy game with a twist. To play this “Magazine I Spy” game, all you need is a magazine and your I Spy ga ...
IEEE

An Anti-Counterfeiting Method of High Security and Reliability Based on Unique Internal Fiber Pattern of Paper

Abstract: Anti-counterfeiting technique is a research hotspot in information security domain. Common techniques are usually based on artificial physical cloneable feature which is forgeable. In this ...