Index: doc/bibliography/pl.bib
===================================================================
--- doc/bibliography/pl.bib	(revision 5a80144407d100629a9ee2fe20572861109d286f)
+++ doc/bibliography/pl.bib	(revision a7865869c3ae3e3d6f13756764a1e34784ef532d)
@@ -1158,6 +1158,5 @@
     contributer = {a3moss@uwaterloo.ca},
     title = {Clang: a {C} language family frontend for {LLVM}},
-    howpublished = {\href{https://clang.llvm.org/}{https://\-clang.llvm.org/}},
-    note = {Accessed 2019-02-22}
+    howpublished = {\href{https://clang.llvm.org/}{https://\-clang.llvm.org/}}
 }