Ok, this must be possible. Can someone point me towards the correct serialization $params such that

 

let $doi := <doi>10.1002/1521-4141(200207)32:7&lt;2021::AID-IMMU2021&gt;3.0.CO;2-J</doi>

return serialize($doi, $params)

 

will return (to a calling Java application) the UTF-8 string

 

10.1002/1521-4141(200207)32:7<2021::AID-IMMU2021>3.0.CO;2-J

 

where the entities &lt; and &gt; have been replaced with the UTF-8 byte representation for U+003C and U+003E respectively?

 

Thanks in advance,

C.