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Nerem, R. S., Chambers, D. ., Leuliette, E. W., Mitchum, G. T., & Giese, B. S. (1999). Variations in global mean sea level associated with the 1997\textendash1998 ENSO event: Implications for measuring long term sea level change. Geophysical Research Letters, 26, 3005–3008. http://doi.org/10.1029/1999GL002311 (Original work published October 1999)
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Chambers, D. ., Mehlhaff, C. A., Urban, T. J., Fujii, D. ., & Nerem, R. S. (2002). Low-frequency variations in global mean sea level: 1950\textendash2000. Journal of Geophysical Research, 107, 3026. http://doi.org/10.1029/2001JC001089 (Original work published April 2002)
Bender, P. ., Nerem, R. S., & Wahr, J. M. (2003). Possible Future Use of Laser Gravity Gradiometers. Space Science Reviews, 108, 385–392. http://doi.org/10.1023/A:1026100130397 (Original work published July 2003)
Holland, C. L., & Mitchum, G. T. (2003). Interannual volume variability in the tropical Pacific. Journal of Geophysical Research (Oceans), 108, 3369. http://doi.org/10.1029/2003JC001835 (Original work published November 2003)