@article{article805fa4cb,
title   = {Velocity dispersions and metallicities of 18 so / e galaxies: synthetic 'MG'i triplet lines in old composite systems},
author = {Souza, Ronaldo Eustáquio de and Barbuy, Beatriz Leonor Silveira and Anjos, Sandra dos},
year = {1993},
journal   = {Astronomical Journal}
}