机译:Stellar populations and evolution of early-type cluster galaxies: Constraints from optical imaging and spectroscopy of z = 0.5-0.9 galaxy clusters
Gemini Observatory, 670 North A'ohoku Place, Hilo, HI 96720, United States;
galaxies: clusters: individual (MS0451.6-0305; RXJ0152.7-1357; RXJ1226.9+3332); galaxies: evolution; galaxies: stellar content;