+ If attribute <literal>backendelementset</literal> is given, that holds
+ elementset to be transmitted to backend. If
+ <literal>backendelementset</literal> is omitted, the element
+ set from client is used, except if <literal>marcxml</literal> is used.
+ If no <literal>backendelementset</literal> is given and
+ <literal>marcxml</literal> is used, the elementset is omitted in
+ request to backend.
+ </para>
+ <para>