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@ARTICLE{2018AnGeo..36.1227R,
author = {{Ren}, L. and {Sch{\"o}n}, S.},
title = "{PPP-based Swarm kinematic orbit determination}",
journal = {Annales Geophysicae},
year = 2018,
month = sep,
volume = 36,
pages = {1227-1241},
doi = {10.5194/angeo-36-1227-2018},
adsurl = {http://adsabs.harvard.edu/abs/2018AnGeo..36.1227R},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}