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IEEE Xplore Abstract - Overview of assistive technologies for the blind: Navigation and shopping

http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=7064611&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D7064611

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