Hubble Space Telescope imaging of a peculiar stellar complex in NGC 6946SØren S. LarsenYuri N. Efremovet al.2002Astrophysical Journal
Structure and mass of a young globular cluster in NGC 6946Søren S. LarsenJean P. Brodieet al.2001Astrophysical Journal
Giant shells and stellar arcs as relics of gamma-ray burst explosionsYuri N. EfremovBruce G. Elmegreenet al.1998Astrophysical Journal