--- a/RelaxNG/publidoc.rnc	ven. nov. 09 19:00:12 2012 +0100
+++ b/RelaxNG/publidoc.rnc	ven. nov. 09 22:11:55 2012 +0100
@@ -107,6 +107,10 @@
 component.head.content =
    (title, shorttitle?, subtitle?)?
  & contributors?
+ & date?
+ & place?
+ & keywordset?
+ & subjectset?
  & abstract?
  & annotation*