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[ESO ASTROPHYSICS SYMPOSIA] Extragalactic Globular Cluster Systems || Globular Clusters in Nearby Galaxy ClustersKissler-Patig, Markus · 2003

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Globular clusters in the far-ultraviolet: evidence for He-enriched second populations in extragalactic globular clusters?Peacock, Mark B.; Zepf, Stephen E.; Kundu, Arunav; Chael, Julia · Monthly Notices of the Royal Astronomical Society · 2017

GLOBULAR CLUSTERS IN THE OUTER GALACTIC HALO: NEW <i>HUBBLE SPACE TELESCOPE</i> /ADVANCED CAMERA FOR SURVEYS IMAGING OF SIX GLOBULAR CLUSTERS AND THE GALACTIC GLOBULAR CLUSTER AGE-METALLICITY RELATIONDotter, Aaron; Sarajedini, Ata; Anderson, Jay · The Astrophysical Journal · 2011