TY - CONF T1 - The application of non-linear filtering methods to the forecast of geomagnetic indices JO - SOLAR-TERRESTRIAL MAGNETIC ACTIVITY AND SPACE ENVIRONMENT PY - 2002/01/01 AU - Harrison RF AU - Drezet PM ED - Wang HN ED - Xu RL VL - 14 SP - 427 EP - 437 Y2 - 2024/12/26 ER -