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

Alaska Earthquake Center GPS Network - ZINA-Nizina P.S.
Start: 11-Aug-2019
End: 14-Nov-2022
Grapenthin, Ronni, West, Michael, 2015, Alaska Earthquake Center GPS Network - ZINA-Nizina P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/E2NR-1B76

Alaska Earthquake Center GPS Network - ZINA-Nizina P.S.
Start: 15-Oct-2015
End: 14-Nov-2022
Grapenthin, Ronni, West, Michael, Freymueller, Jeffrey T., Burgmann, Roland, 2015, Alaska Earthquake Center GPS Network - ZINA-Nizina P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/2EQ6-K147

Denali Fault GPS Network - ZINA-Nizina P.S.
Start: 15-Oct-2015
End: 11-Aug-2019
Freymueller, Jeffrey T., Burgmann, Roland, 2015, Denali Fault GPS Network - ZINA-Nizina P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5NP22TZ