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  ______    _____     _____     ______    ______  
 /_   _//  |  ___||  |__  //   /_   _//  /_   _// 
 `-| |,-   | ||__      / //     -| ||-   `-| |,-  
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   |_||    |_____||  /_____||  /_____//    |_||   
   `-`'    `-----`   `-----`   `-----`     `-`'

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Text this: Wireless indoor localization for heterogeneous mobile devices