TY - JOUR A1 - Narita, Y. A1 - Kleindienst, G. A1 - Glassmeier, K.-H. T1 - Evaluation of magnetic helicity density in the wave number domain using multi-point measurements in space JO - Ann. Geophys. J1 - ANGEO VL - 27 IS - 10 SP - 3967 EP - 3976 Y1 - 2009/10/21 PB - Copernicus Publications SN - 1432-0576 UR - https://angeo.copernicus.org/articles/27/3967/2009/ L1 - https://angeo.copernicus.org/articles/27/3967/2009/angeo-27-3967-2009.pdf DO - 10.5194/angeo-27-3967-2009 ER -