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

Africa Array GPS Network - KASM-MISAMFU research institute P.S.
Start: 04-Mar-2013
End: 28-Apr-2019
Nyblade, Andy, 2015, Africa Array GPS Network - KASM-MISAMFU research institute P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T55B00TK