Index: doc/papers/concurrency/annex/local.bib
===================================================================
--- doc/papers/concurrency/annex/local.bib	(revision aac71977640c99334881f777535dfd1070e0a264)
+++ doc/papers/concurrency/annex/local.bib	(revision 35a9e41d6e05a8702db938929f74e037c76ca010)
@@ -46,5 +46,5 @@
     title 	= {Thread Building Blocks},
     howpublished= {Intel, \url{https://www.threadingbuildingblocks.org}},
-    note	= {Accessed: 2018-3},
+    optnote	= {Accessed: 2018-3},
 }