parse_references (parents, in_reply_to);
for (i = 0; i < parents->len; i++)
add_term (doc, "ref", (char *) g_ptr_array_index (parents, i));
parse_references (parents, in_reply_to);
for (i = 0; i < parents->len; i++)
add_term (doc, "ref", (char *) g_ptr_array_index (parents, i));