var firing_etal83 = "Firing, E., R. Lukas, J. Sadler and K. Wyrtki, 1983: Equatorial undercurrent disappears during 1982-83 El Niņo. Science, 226, 1069-1071.";
var halpern87 = "Halpern, D., 1987: Observations of the annual and interannual thermal and flow variations along the equator in the eastern Pacific ocean during 1980-1985. J. Geophys. Res., 92, 8303.";
var harrison_schopf84 = "Harrison, D.E., and P.S. Schopf, 1984: Kelvin-Wave induced anomalous advection and the onset of surface warming in El Niņo events. Mon. Wea. Rev., 112, 913-933.";
var harrison_etal88 = "Harrison, D.E., W.S. Kessler and B.S. Giese, 1988: Model-data comparisons for the 1982-83 El Niņo: the XBT tracks. NOAA Tech. Memo. ERL PMEL-79, Pacific Marine Environmental Laboratory, 61 pp.";
var harrison_etal89 = "Harrison, D.E., W.S. Kessler and B.S. Giese, 1989: Ocean circulation model hindcasts of the 1982-83 El Niņo; thermal variability along the ship of opportunity tracks. J. Phys. Oceanogr., 19, 397-418.";
var hellerman_rosenstein83 = "Hellerman, S., and M. Rosenstein, 1983: Normal monthly mean wind stress over the world ocean with error estimates. J. Phys. Oceanogr., 4, 145-167.";
var meyers_etal86 = "Meyers, G., J.R. Donguy and R.K. Reed, 1986: Evaporative cooling of the western equatorial Pacific Ocean by anomalous winds. Nature, 323, 523-526.";
var pacanowski_philander81 = "Pacanowski, R., and S.G.H. Philander, 1981: Parameterization of vertical mixing in numerical models of tropical oceans. J. Phys. Oceanogr., 11, 1443-1451.";
var philander_seigel85 = "Philander, S.G.H., and A.D. Seigel, 1985: Simulation of El Niņo of 1982-1983. Coupled Ocean-Atmosphere Models, J. Nihoul, Ed., Elsevier, 517-541.";
var rasmusson_carpenter82 = "Rasmusson, E.M., and T.H. Carpenter, 1982: Variations in tropical sea-surface temperature and surface wind fields associated with the Southern Oscillation/El Niņo. Mon. Wea. Rev., 110, 354-384.";
var rasmusson_wallace83 = "Rasmusson, E.M., and J.M. Wallace, 1983: Meteorological aspects of the 1982-83 El Niņo. Science, 222, 1195.";
var reed86 = "Reed, R.K., 1986: Effects of surface heat flux during the 1972 and 1982 El Niņo episodes. Nature, 322, 449-450.";