Media type: E-Article Title: CCD photometry of globular cluster core structure. I - NGC 6388, NGC 6624, and M15: One flat core and two cusps Contributor: Lugger, Phyllis M.; Cohn, Haldan; Grindlay, Jonathan E.; Bailyn, Charles D.; Hertz, Paul imprint: American Astronomical Society, 1987 Published in: The Astrophysical Journal Language: English DOI: 10.1086/165566 ISSN: 0004-637X; 1538-4357 Keywords: Space and Planetary Science ; Astronomy and Astrophysics Origination: Footnote: Access State: Open Access