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

Tanzania Network - DODC-Dodoma Continuous P.S.
Start: 21-May-2009
End: 11-Aug-2010
Calais, Eric, 2010, Tanzania Network - DODC-Dodoma Continuous P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5JW8BX1