TY - JOUR A1 - Willis, D. M. A1 - Gardiner, A. R. A1 - Davda, V. N. A1 - Bone, V. J. T1 - Planar charged-particle trajectories in multipole magnetic fields JO - Ann. Geophys. J1 - ANGEO VL - 15 IS - 2 SP - 197 EP - 210 Y1 - 1997/02/28 PB - Springer Verlag SN - 1432-0576 UR - https://angeo.copernicus.org/articles/15/197/1997/ L1 - https://angeo.copernicus.org/articles/15/197/1997/angeo-15-197-1997.pdf DO - 10.1007/s00585-997-0197-9 ER -