Remove duplicated ref.

diff --git a/GMRES_Journal.tex b/GMRES_Journal.tex
index 1b3b8b566e84b25f84ffb3ad01981f59d56a5eec..3add2567e3fcbc522d7296230a2f6da9121bca8b 100644 (file)
--- a/GMRES_Journal.tex
+++ b/GMRES_Journal.tex
@@ -151,7 +151,7 @@ read-only \emph{constant} and \emph{texture} caches per multiprocessor and a rea
 \emph{global memory} shared by all its multiprocessors. The new architectures (Fermi, Kepler,
 etc) have also L1 and L2 caches to improve the accesses to the global memory.
 
-NVIDIA has released the CUDA platform (Compute Unified Device Architecture)~\cite{Nvi10}
+NVIDIA has released the CUDA platform (Compute Unified Device Architecture)~\cite{ref19}
 which provides a high level GPGPU-based programming language (General-Purpose computing
 on GPUs), allowing to program GPUs for general purpose computations. In CUDA programming
 environment, all data-parallel and compute intensive portions of an application running