%0 Journal Article %T Application of ionospheric corrections in the equatorial region for L1 GPS users %A Camargo, Paulo %A Monico, João %A Ferreira, Luiz %J Earth, Planets and Space %V 52 %N 11 %P 1083-1089 %D 2014-06-24 %I Springer Berlin Heidelberg %~ DeepDyve