National Hurricane Center (2007). "61291 Bamako, Mali". NOAA. Retrieved 2007-09-26.
National Hurricane Center (2007). "61052 Niamey, Niger". NOAA. Retrieved 2007-09-26.
aoml.noaa.gov
Jose F. Partagas (1997). Year 1901(PDF). Atlantic Oceanographic and Meteorological Laboratory (Report). Miami, Florida: National Oceanic and Atmospheric Administration. Retrieved April 26, 2016.