The following information obtained from UNAVCO's online DOI system:
(https://www.unavco.org/data/doi/search/search.html)

Bangladesh GPS Network - KPTI-Kaptai P.S.
Start: 23-Feb-2007
End: 09-Oct-2011
Steckler, Michael, Humayun Akhter, Syed, Seeber, Leonardo, 2007, Bangladesh GPS Network - KPTI-Kaptai P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T55719TN