[ocl] OCL 2019 papers updated with copyrights
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diff --git a/ocl/docs/publications/OCL2019MapType/OCLMapType.pdf b/ocl/docs/publications/OCL2019MapType/OCLMapType.pdf
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diff --git a/ocl/docs/publications/OCL2019MapType/OCLMapType.tex b/ocl/docs/publications/OCL2019MapType/OCLMapType.tex
index 53c1225..b39c055 100644
--- a/ocl/docs/publications/OCL2019MapType/OCLMapType.tex
+++ b/ocl/docs/publications/OCL2019MapType/OCLMapType.tex
@@ -12,7 +12,10 @@
 %
 \mainmatter              % start of the contributions
 %
-\title{An OCL Map Type}
+\title{An OCL Map Type\thanks{%
+      Copyright \copyright 2019 for this paper by its authors.
+      Use permitted under Creative Commons License Attribution
+      4.0 International (CC BY 4.0).}}
 %
 \titlerunning{An OCL Map Type}  % abbreviated title (for running head)
 %                                     also used for the TOC unless
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diff --git a/ocl/docs/publications/OCL2019Visuals/OCLVisualization.pdf b/ocl/docs/publications/OCL2019Visuals/OCLVisualization.pdf
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diff --git a/ocl/docs/publications/OCL2019Visuals/OCLVisualization.tex b/ocl/docs/publications/OCL2019Visuals/OCLVisualization.tex
index b436216..84789e5 100644
--- a/ocl/docs/publications/OCL2019Visuals/OCLVisualization.tex
+++ b/ocl/docs/publications/OCL2019Visuals/OCLVisualization.tex
@@ -15,7 +15,10 @@
 %
 \mainmatter              % start of the contributions
 %
-\title{OCL Visualization - A Reality Check}
+\title{OCL Visualization - A Reality Check\thanks{%
+      Copyright \copyright 2019 for this paper by its authors.
+      Use permitted under Creative Commons License Attribution
+      4.0 International (CC BY 4.0).}}
 %
 \titlerunning{OCL Visualization}  % abbreviated title (for running head)
 %                                     also used for the TOC unless