-# Cannot connect to trick.ntp.springer.de
-ftp://trick.ntp.springer.de/pub/tex/latex/llncs/latex2e
-# file/directory not found
-ftp://www.ctan.org/pub/tex-archive/macros/latex2e/contrib/fancyhdr/fancyhdr.pdf
-ftp://tug.ctan.org/pub/tex-archive/macros/latex/contrib/caption/caption.pdf
-#Net::HTTP: Bad hostname 'math.tulane.edu'
-http://math.tulane.edu/~entcs/
-# Net::HTTP: Bad hostname 'media.texample.net'
-http://media.texample.net/tikz/examples/TEX/free-body-diagrams.tex
+# No entry here means, there are no inaccessible
+# urls used in our lyx-source