T. Sivarani(1), P. Bonifacio(1), P. Molaro(1), R. Cayrel(2), M. Spite(2), F. Spite(2), B. Plez(3), J. Andersen(4), B. Barbuy(5), T. C. Beers(6), E. Depagne(7), V. Hill(2), P. Francois(2), B. Nordstrom (8,4), F. Primas(9) ((1) INAF-OA Trieste, (2) Observatoire de Paris-Meudon, (3) GRAAL, Univ. Montpellier, (4) Astronomical Observatory, NBIfAFG, Copenhagen, (5) IAG, Universidade de Sao Paulo, (6) Michigan State University, (7) ESO-Chile, (8) Lund Observatory, (9) ESO-Garching)
