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

Guerrero Coast GPS Network - CPDP-Cerro De Piedra P.S.
Start: 10-Jul-2003
End: 24-Jun-2010
Larson, Kristine, Kostoglodov, Vladimir, Santiago, Jose A., 2003, Guerrero Coast GPS Network - CPDP-Cerro De Piedra P.S., UNAVCO, GPS/GNSS Observations Dataset, 
https://doi.org/10.7283/T5PZ56WQ