Radiative levitation: a likely explanation for pulsations in the unique hot O subdwarf star SDSS J160043.6+074802.9G. Fontaine, P. Brassard, E. M. Green, P. Chayer, S. Charpinet, M. Andersen and J. PortouwA&A, 486 3 (2008) L39-L42DOI: https://doi.org/10.1051/0004-6361:200810173
