<literal>*len</literal>.
</para></listitem>
</varlistentry>
+ <varlistentry><term><literal>json</literal></term>
+ <listitem><para>Like xml, but MARC records are converted to
+ <ulink url="&url.marc_in_json;">MARC-in-JSON</ulink>.
+ </para></listitem>
+ </varlistentry>
+
</variablelist>
</para>
<para>