[1999] [2000] [2001] [2003] [2004] [2005] [2006] [2007] [2008] - 2009 - [2010] [2011] [2012] [in press]

1. De Pol-Holz, R., R. S. Robinson, D. Hebbeln, D. M. Sigman & O. Ulloa. Controls on sedimentary nitrogen isotopes along the Chile margin. Deep-Sea Research II, 56, 1042-1054, 2009.

2. Galán, A., V. Molina, B. Thamdrup, D. Woebken, G. Lavik, M. M. M. Kuypers & O. Ulloa. Anammox bacteria and the anaerobic oxidation of ammonium in the oxygen minimum zone off northern Chile. Deep-Sea Research II, 56, 1021-1031, 2009.

3. Revsbech. N. P., L. H. Larsen, J. Gundersen, T. Dalsgaard, O. Ulloa & B. Thamdrup. Determination of ultra-low oxygen concentrations in oxygen minimum zones by the STOX sensor. Limnology and Oceanography: Methods, 7, 371-381, 2009.

4. Ullloa, O., & S. Pantoja. The oxygen minimum zone of the eastern South Pacific. Deep-Sea Research II, 56, 987-991, 2009.

5. Whitmire, A. L., R. M. Letelier, V. Villagrán & O. Ulloa. Autonomous observations of in vivo 
fluorescence and particle backscattering
in an oceanic oxygen minimum zone. Optics Express, 17, 21992-22004, 2009.