About bibliography in TeXmacs

I tried to incorporate bibliographic info in a tm file. However, I see that eprints are not treated well. For example:

test.bib:

@article{wassenberg,
  author       = {Wassenberg, Jan and Sanders, Peter},
  title        = {Faster Radix Sort via Virtual Memory and Write-Combining},
  date         = {2010-08-17},
  version      = 1,
  eprinttype   = {arxiv},
  eprintclass  = {cs.DS},
  eprint       = {1008.2849v1},
}

with test.tm:

<TeXmacs|1.99.12>

<style|generic>

<\body>
  For a reference, see <cite|wassenberg>.

  <\bibliography|bib|tm-alpha|test>
    <\bib-list|1>
      <bibitem*|WS><label|bib-wassenberg>Jan Wassenberg<localize| and >Peter
      Sanders. <newblock>Faster radix sort via virtual memory and
      write-combining.<newblock>
    </bib-list>
  </bibliography>
</body>

<\initial>
  <\collection>
    <associate|font-base-size|12>
    <associate|page-height|auto>
    <associate|page-type|letter>
    <associate|page-width|auto>
  </collection>
</initial>

<\references>
  <\collection>
    <associate|auto-1|<tuple|?|?>>
    <associate|bib-wassenberg|<tuple|WS|?>>
  </collection>
</references>

<\auxiliary>
  <\collection>
    <\associate|bib>
      wassenberg
    </associate>
    <\associate|toc>
      <vspace*|1fn><with|font-series|<quote|bold>|math-font-series|<quote|bold>|Bibliography>
      <datoms|<macro|x|<repeat|<arg|x>|<with|font-series|medium|<with|font-size|1|<space|0.2fn>.<space|0.2fn>>>>>|<htab|5mm>>
      <no-break><pageref|auto-1><vspace|0.5fn>
    </associate>
  </collection>
</auxiliary>

The date, version, eprint identifier and the eprint classification are not shown. I wonder how to customize the bibliographic import to include these properly.