[bibliography] Add Flynn 1966 entry

Add bibliography entry for Flynn 1966, the paper that introduced what
later became known as "Flynn's Taxonomy."  This classifies parallel
computer hardware as SISD, SIMD, MISD, or MIMD.  Adding this entry
will let [simd] ("Data-parallel types") refer to this paper (a change
to be made in a future commit) when unpacking the "SIMD" abbreviation.

Author: mhoemmen

source/back.tex

@@ -86,6 +86,10 @@
   Roldan Pozo, Karin Remington, R. Client Whaley
   \doccite{An Updated Set of Basic Linear Algebra Subprograms (BLAS)}.
   ACM Trans.\ Math.\ Soft., Vol.\ 28, Issue 2, 2002.
+\bibitem{flynn-taxonomy}
+  Michael J.\ Flynn,
+  \doccite{Very High-Speed Computing Systems}.
+  Proceedings of the IEEE, Vol.\ 54, Issue 12, 1966.
 \end{thebibliography}
 
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