See YAZ documentation for more information about the
<ulink url="http://indexdata.dk/yaz/doc/tools.tkl#tools.cql.pqf">CQL
to PQF</ulink> conversion. See also the
See YAZ documentation for more information about the
<ulink url="http://indexdata.dk/yaz/doc/tools.tkl#tools.cql.pqf">CQL
to PQF</ulink> conversion. See also the