| Correct normalization of the Dst index K Mursula, L Holappa, A Karinen Astrophysics and Space Sciences Transactions 4 (2), 41-45, 2008 | 49 | 2008 |
| Annual fractions of high‐speed streams from principal component analysis of local geomagnetic activity L Holappa, K Mursula, T Asikainen, IG Richardson Journal of Geophysical Research: Space Physics 119 (6), 4544-4555, 2014 | 46 | 2014 |
| Occurrence of high-speed solar wind streams over the Grand Modern Maximum K Mursula, R Lukianova, L Holappa The Astrophysical Journal, 2015 | 38 | 2015 |
| A new method to estimate annual solar wind parameters and contributions of different solar wind structures to geomagnetic activity L Holappa, K Mursula, T Asikainen Journal of Geophysical Research: Space Physics 119 (12), 9407-9418, 2014 | 31 | 2014 |
| Average properties of geomagnetic storms in 1932–2009 OS Yakovchouk, K Mursula, L Holappa, IS Veselovsky, A Karinen Journal of Geophysical Research: Space Physics 117 (A3), 2012 | 28 | 2012 |
| Ring current development during high speed streams VK Jordanova, H Matsui, PA Puhl-Quinn, MF Thomsen, K Mursula, ... Journal of atmospheric and solar-terrestrial physics 71 (10-11), 1093-1102, 2009 | 28 | 2009 |
| Explicit IMF By Dependence in High‐Latitude Geomagnetic Activity L Holappa, K Mursula Journal of Geophysical Research: Space Physics 123 (6), 4728-4740, 2018 | 22 | 2018 |
| Seasonal solar wind speeds for the last 100 years: Unique coronal hole structures during the peak and demise of the Grand Modern Maximum K Mursula, L Holappa, R Lukianova Geophysical Research Letters 44 (1), 30-36, 2017 | 19 | 2017 |
| Explicit IMF dependence in geomagnetic activity: Modulation of precipitating electrons L Holappa, T Asikainen, K Mursula Geophysical Research Letters 47 (4), e2019GL086676, 2020 | 17 | 2020 |
| Uneven weighting of stations in the Dst index K Mursula, L Holappa, A Karinen Journal of atmospheric and solar-terrestrial physics 73 (2-3), 316-322, 2011 | 12 | 2011 |
| Explicit IMF By‐Dependence in Geomagnetic Activity: Quantifying Ionospheric Electrodynamics L Holappa, RM Robinson, A Pulkkinen, T Asikainen, K Mursula Journal of Geophysical Research: Space Physics 126 (4), e2021JA029202, 2021 | 10 | 2021 |
| Centennial evolution of monthly solar wind speeds: Fastest monthly solar wind speeds from long‐duration coronal holes R Lukianova, L Holappa, K Mursula Journal of Geophysical Research: Space Physics 122 (3), 2740-2747, 2017 | 8 | 2017 |
| Explicit IMF By‐Effect Maximizes at Subauroral Latitudes (Dedicated to the Memory of Eigil Friis‐Christensen) L Holappa, N Gopalswamy, K Mursula Journal of Geophysical Research: Space Physics 124 (4), 2854-2863, 2019 | 7 | 2019 |
| Explicit IMF By‐Dependence of Energetic Protons and the Ring Current L Holappa, NY Buzulukova Geophysical Research Letters 49 (8), e2022GL098031, 2022 | 4 | 2022 |
| Toward more reliable long‐term indices of geomagnetic activity: Correcting a new inhomogeneity problem in early geomagnetic data L Holappa, K Mursula Journal of Geophysical Research: Space Physics 120 (10), 8288-8297, 2015 | 3 | 2015 |
| The Magnitude of IMF By Influences the Magnetotail Response to Solar Wind Forcing L Holappa, JP Reistad, A Ohma, C Gabrielse, D Sur Journal of Geophysical Research: Space Physics 126 (11), e2021JA029752, 2021 | 2 | 2021 |
| Principal component analysis of geomagnetic activity: New information on solar wind K Mursula, L Holappa Proceedings of the International Astronomical Union 13 (S335), 197-200, 2017 | 2 | 2017 |
| Magnetic storms during the space age: Occurrence and relation to varying solar activity K Mursula, T Qvick, L Holappa, T Asikainen Journal of Geophysical Research: Space Physics 127 (12), e2022JA030830, 2022 | 1 | 2022 |
| A Combined effect of the Earth's magnetic dipole tilt and IMF By in controlling auroral electron precipitation JA Laitinen, L Holappa, H Vanhamäki | | 2023 |
| Solar wind–Magnetosphere interactions S Wing, JE Borovsky, L Holappa, O Khabarova Frontiers in Astronomy and Space Sciences 10, 1158971, 2023 | | 2023 |
