RFC2397 ref in XHTML print

Looking at

http://www.w3.org/TR/2004/CR-xhtml-print-20040120/

I was surprised that all references were normative and none informative.

I checked two:

CHARMOD did seem to be a genuine normative ref, given the dependency on the
representations of the characters (it might have been wiser to depend on the
Unicode documents which I think are more stable)

RFC2397 on the other hand is not used at all, and hence should be deleted
from the references.

Glancing at the others does suggest they are normative (particularly subtle
is that appendix A is normative and pulls in a few obscure refs in a
normative way)

I do not require that this comment is formally addressed.
I am satisfied with any response or none at all.

Jeremy Carroll