%0 Journal Article %A Shen, C. %A Dunlop, M. %A Li, X. %A Liu, Z. X. %A Balogh, A. %A Zhang, T. L. %A Carr, C. M. %A Shi, Q. Q. %A Chen, Z. Q. %D 2007 %8 Array %P A03201, doi:10.1029/2006JA011699 %T New approach for determining the normal of the bow shock based on Cluster four-point magnetic field measurments %V 112 %J J. Geophys. Res.