Add LICS.

bibs/header.bib

@@ -231,6 +231,7 @@
 @STRING{lics03      = lics # ", Ottawa, Ontario" }
 @STRING{lics06      = lics # ", Seattle, Washington" }
 @STRING{lics11      = lics # ", Toronto, Ontario" }
+@STRING{lics16      = lics # ", New York, New York" }
 % ----
 @STRING{pldi        = "{ACM SIGPLAN Conference on Programming Language Design
                       and Implementation (PLDI)}" }