TY - JOUR A1 - Vörös, Z. A1 - Jankovičová, D. T1 - Neural network prediction of geomagnetic activity: a method using local Hölder exponents JO - Nonlin. Processes Geophys. J1 - NPG VL - 9 IS - 5/6 SP - 425 EP - 433 Y1 - 1999/11/30 PB - Copernicus Publications SN - 1607-7946 UR - http://www.nonlin-processes-geophys.net/9/425/2002/ L1 - http://www.nonlin-processes-geophys.net/9/425/2002/npg-9-425-2002.pdf DO - 10.5194/npg-9-425-2002 ER -