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				 * [Crystal for Rubyists](http://www.crystalforrubyists.com)
			
 
				 
			
 
				+
			
 
				 ### CUDA
			
 
				 
			
 
				 * [OpenCL Programming Guide for CUDA Architecture](http://www.nvidia.com/content/cudazone/download/OpenCL/NVIDIA_OpenCL_ProgrammingGuide.pdf) (PDF)