TY - JOUR A1 - Zhang, W. A1 - Zhang, D. H. A1 - Xiao, Z. T1 - The influence of geomagnetic storms on the estimation of GPS instrumental biases JO - Ann. Geophys. J1 - ANGEO VL - 27 IS - 4 SP - 1613 EP - 1623 Y1 - 2009/04/03 PB - Copernicus Publications SN - 1432-0576 UR - https://angeo.copernicus.org/articles/27/1613/2009/ L1 - https://angeo.copernicus.org/articles/27/1613/2009/angeo-27-1613-2009.pdf DO - 10.5194/angeo-27-1613-2009 ER -