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• Nuclear-powered millisecond pulsars and the maximum spin frequency of neutron stars.

  Chakrabarty D, Morgan EH, Muno MP, Galloway DK, Wijnands R, Van Der Klis M, Markwardt CB. Chakrabarty D, et al. Nature. 2003 Jul 3;424(6944):42-4. doi: 10.1038/nature01732. Nature. 2003. PMID: 12840751
• Quasi-periodic X-ray brightness fluctuations in an accreting millisecond pulsar.

  Wijnands R, Van Der Klis M, Homan J, Chakrabarty D, Markwardt CB, Morgan EH. Wijnands R, et al. Nature. 2003 Jul 3;424(6944):44-7. doi: 10.1038/nature01754. Nature. 2003. PMID: 12840752