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

RiftVolc GPS Network - A03G-A03G P.S.
Start: 20-Mar-2013
End: 21-Sep-2016
Biggs, Juliet, Lewi, Elias, 2018, RiftVolc GPS Network - A03G-A03G P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/92H5-QQ81