Gallagher, J. S., E. K. Grebel and D. Harbeck: Spheroidal Dwarfs and Early Chemical Evolution of Galaxies. In: Origin and evolution of the elements, (Eds.) McWilliam, A.; Rauch, M. Carnegie Observatories Astrophysics Series. Carnegie Observatories (2004) .
Grebel, E. K., J. S. Gallagher and D. Harbeck: The Progenitors of Dwarf Spheroidal Galaxies. In: American Astronomical Society Meeting 201, #116.13. (Eds.) ---. Short Contributions of the Annual Scientific Meeting of the Astronomical Society, Berlin, Seq. No.: 2003ANS...324Q..90G (2003) 90-– +.
Fan, X., M. A. Strauss, D. P. Schneider, R. H. Becker, R. L. White, Z. Haiman, M. Gregg, L. Pentericci, E. K. Grebel, V. K. Narayanan, Y. Loh, G. T. Richards, J. E. Gunn, R. H. Lupton, G. R. Knapp, Z. Ivezic, W. N. Brandt, M. Collinge, L. Hao, D. Harbeck, F. Prada, J. Schaye, I. Strateva, N. Zakamska, S. Anderson, J. Brinkmann, N. A. Bahcall, D. Q. Lamb, S. Okamura, A. Szalay and D. G. York: A Survey of z>5.7 quasars in the Sloan Digital Sky Survey. II. Discovery of three additional quasars at z>6. In: The Astronomical Journal 125, 1649-1659 (2003).
Harbeck, D., G. H. Smith and E. K. Grebel: CN abundance variations on the main sequence of 47 Tucanae. In: Cn Abundance Variations on the Main Sequence of 47 Tucanae 125, 197-207, Seq. No.: 2003ANS...324...78H (2003).
Klessen, R. S., E. K. Grebel and D. Harbeck: Draco: A failure of the tidal model. In: The Astrophysical Journal 589, 798-809 (2003).
Helmi, A., Z. Ivezic, F. Prada, L. Pentericci, C. M. Rockosi, D. P. Schneider, E. K. Grebel, D. Harbeck, R. H. Lupton, J. E. Gunn, G. R. Knapp, M. A. Strauss and J. Brinkmann: Selection of metal-poor giant stars using the Sloan Digital Sky Survey photometric system. In: The Astrophysical Journal 586, 195-200 (2003).
Pentericci, L., H. -. W. Rix, F. Prada, X. Fan, M. A. Strauss, D. P. Schneider, E. K. Grebel, D. Harbeck, J. Brinkmann and V. K. Narayanan: The near-IR properties and continuum shapes of high redshift quasars from the Sloan Digital Sky Survey. In: Astronomy and Astrophysics 410, 75-82 (2003).
url: http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2003A%26A...410...75P&db_key=AST
Grebel, E. K., J. S. Gallagher and D. Harbeck: The Progenitors of dwarf spheroidal galaxies. In: The Astronomical Journal 125, 1926-1939, Seq. No.: 2003ANS...324Q..90G (2003).
Datta, S., L. Pittroff, P. Guhathakurta, E. Grebel and D. Harbeck: Keck Spectroscopy of Red Giants in the M31 dSph Satellites: Chemical Abundance Spread. In: Bulletin of the American Astronomical Society 34, Seq. No.: 14.14 (2002).
Harbeck, D., G. H. Smith and E. K. Grebel: External Enrichment Processes in 47 Tuc?. In: American Astronomical Society Meeting 200, Seq. No.: 10.04 (2002).
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