Owens, J. D.; Houston, M.; Luebke, D.; Green, S.; Stone, J. E.; Phillips, J. C. (2008). „GPU Computing”. Proceedings of the IEEE. 96 (5): 879. doi:10.1109/JPROC.2008.917757.
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US 3029413, O'Connor, Daniel G. & Nelson, "Sorting system with n-line sorting switch", published 10. 4. 1962