Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Tadahiro Gotoh and Dirk Piester and Andreas Bauch and Miho Fujieda and T. Feldmann,Concept for an accurate calibration of long baseline two-way satellite time and frequency transfer (TWSTFT) links via two separated transponders on one telecommunication satellite,2009 IEEE International Frequency Control Symposium Joint with the 22nd European Frequency and Time forum,,IEEE,2009-04-01,,,1076-1081,https://cir.nii.ac.jp/crid/1870865117609758464,https://doi.org/10.1109/freq.2009.5168362