5343 20210511100922.0 10.1007/s10291-020-01082-y DOI SCART-2021-0087 Sesia, Ilaria GNSS-to-GNSS Time Offsets: Study on the broadcast of a common reference time 2021 NO Signorile, Giovanna, Thai, Tung Defraigne, Pascale Tavella, Patrizia GPS Solutions 25 2021 61 pascale.defraigne@observatoire.be published in REFERD