Para with ID and references with pagenumber

Hello,

I'd like to reference a paragraph including the number of the page it appears in.

Somewhere in my document I have a
<formalpara id="someid"><title>sometitle</title>some text...</formalpara>

which gets referenced thus: <xref linkend="someid" role="select: quotedtitle pageabbrev"/>

In the pdf-output this will result in
	"sometitle" (p. ?)

I couldn't get the pagenumber in there. How could I achieve this?

thanks
best regards
Steffen Glückselig