Add IU DOI citation for SNZO station

GeoNet uses and grants citation for SNZO IU station

Author: salichon

references/citations.csv

@@ -20,6 +20,7 @@ Gns2021b,GNS Science,2021,GeoNet Aotearoa New Zealand Strong Motion Data Product
 Gns2022a,GNS Science,2022,GeoNet Aotearoa New Zealand Acoustic Digital Waveform Dataset[Data set],GNS Science Datasets Catalogue,,,https://doi.org/10.21420/0PRR-YT69,,
 Gns2022b,GNS Science,2022,GeoNet Aotearoa New Zealand ScanDOAS Data,GNS Science Datasets Catalogue[Data set],,,https://doi.org/10.21420/HC1t-QJ63,,
 Gns2023a,GNS Science,2023,GNS Science Shaking Layers Dataset,GNS Science Datasets Catalogue[Data set],,,https://doi.org/10.21420/J856-2J84,,
+GSN_IU_1988,Global Seismic Network IRIS/USGS,1988, World wide distribution of high gain co-located broadband velocity instruments and accelerometers,,,,https://doi.org/10.7914/SN/IU,,  
 Jeong2015,"Jeong, S., and Bradley, B.A.",2015,Simulation of 2D site response at Heathcote Valley during the 2010-2011 Canterbury earthquake sequence,10th Pacific Conference on Earthquake Engineering,,p8,,,
 Kaiser2006a,"Kaiser, A.E., and Louie, J.N.",2006,Shear-wave velocities in Parkway basin Wainuiomata from refraction microtremor surface wave dispersion,GNS Science Report,2006/24,,,,
 Kaiser2006b,"Kaiser, A.E., and Louie, J.N.",2006,Unpublished refraction microtremor (ReMi) surveys of Wellington Lower Hutt,,,,,,