TY - JOUR A1 - Janhunen, P. A1 - Kallio, E. T1 - Surface conductivity of Mercury provides current closure and may affect magnetospheric symmetry JO - Ann. Geophys. J1 - ANGEO VL - 22 IS - 5 SP - 1829 EP - 1837 Y1 - 2004/04/08 PB - Copernicus Publications SN - 0992-7689 UR - http://www.ann-geophys.net/22/1829/2004/ L1 - http://www.ann-geophys.net/22/1829/2004/angeo-22-1829-2004.pdf ER -