1. Ashok, K., and T. Yamagata, 2009: The El Niño with a difference. Nature, 461, 481–484.
2. Ashok, K., S. K. Behera, S. A. Rao, H. Weng, and T. Yamagata, 2007: El Niño Modoki and its possible teleconnection. J. Geophys. Res., 112(C11007), doi: 10.1029/2006jc003798.
3. Briegel, L. M., and W. M. Frank, 1997: Large-scale influences on tropical cyclogenesis in the western North Pacific. Mon. Wea. Rev., 125, 1397–1413.
4. Camargo, S. J., A. W. Robertson, S. J. Gaffney, P. Smyth, and M. Ghil, 2007: Cluster analysis of typhoon tracks. Part II: Largescale circulation and ENSO. J. Climate, 20(14), 3654–3676, doi: 10.1175/jcli4203.1.
5. Chan, J. C. L., 1984. Definition of the steering flow for tropical cyclone motion. 15th Conference on Hurricanes and Tropical Meteorology, Boston, 559–566.