The algorithm of integer ambiguity resolution with BDS triple-frequency between reference stations at single epoch
ZHU Huizhong, LEI Xiaoting, LI Jun, GAO Meng, XU Aigong
Acta Geodaetica et Cartographica Sinica . 2020, (11): 1388 -1398 .  DOI: 10.11947/j.AGCS.2020.20200110