%0 Journal Article %T GAMP: An open-source software of multi-GNSS precise point positioning using undifferenced and uncombined observations %A Zhou, Feng %A Dong, Danan %A Li, Weiwei %A Jiang, Xinyuan %A Wickert, Jens %A Schuh, Harald %J GPS Solutions %V 22 %N 2 %P 1-10 %@ 1080-5370 %D 2018-01-16 %I Springer Berlin Heidelberg %~ DeepDyve