https://earthquake.usgs.gov/monitoring/gps/NCalifornia_SGPS/h231
Station H231 | NCalifornia_SGPS Network
USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards
stationsgpsnetwork
https://archives.lib.duke.edu/catalog/jwtcompetitiveads_aspace_aea2b76dce66b84167e05ef01b947ca5
H231--Cutlery, 1982 - Archives & Manuscripts at Duke University Libraries
duke universitycutleryarchivesmanuscriptslibraries
https://documents.worldbank.org/pt/publication/documents-reports/documentdetail/887151467991032694
Financing Agreement, Grant H231-GN Conformed
financingagreementgrantgn
https://archives.lib.duke.edu/catalog/jwtcompetitiveads_aspace_773789cc546d1d0c60be30dc21757537
H231--Corning (including Pyrex), 1982 - Archives & Manuscripts at Duke University Libraries
duke universitycorningincludingpyrex