Chemical composition of 90 F and G disk dwarfs Y. Q. Chen, P. E. Nissen, G. Zhao, H. W. Zhang and T. Benoni Astron. Astrophys. Suppl. Ser., 141 3 (2000) 491-506 Published online: 15 February 2000 DOI: 10.1051/aas:2000124