When using the data set in a paper, the following is the correct citation to use (pdf file):
Ingleby, B., and M. Huddleston, 2007: Quality control of ocean
temperature and salinity profiles - historical and real-time data.
Journal of Marine Systems, 65, 158-175 10.1016/j.jmarsys.2005.11.019
The time varying XBT corrections are described in:
Wijffels, S., J. Willis, C. M. Domingues, P. Barker, N. J. White, A. Gronell, K. Ridgway and J. A. Church, 2008, Changing expendable bathythermograph fall rates and their impact on estimates of thermosteric sea level rise, Journal of Climate, 21, 21, 5657-5672, DOI:10.1175/2008JCLI2290.1
The altimetry quality control methodology is described in:
Guinehut, S., C. Coatanoan, A.-L. Dhomps, P.-Y. Le Traon and G. Larnicol, 2009. On the use of satellite altimeter data in Argo quality control, Journal of Atmospheric and Oceanic Technology, 26, 395-402, DOI: 10.1175/2008JTECHO648.1