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    "       pp 7-8. Khronos Group, 2010.",
    ".. [3] Proper treatment of pixels as integers. A.W. Paeth.",
    "       In \"Graphics Gems I\", pp 249-256. Morgan Kaufmann, 1990.",
    ".. [4] Dirty Pixels. J. Blinn. In \"Jim Blinn's corner: Dirty Pixels\",",
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