@inproceedings{inproceedings246e7eba,
title   = {Some aspects of the chemical evolution of 'ANTPOT.4 HE' in the galaxy: the 'HE'/'H' radial gradient and the 'delta'Y/'delta'Z enrichment ratio},
author = {Maciel, Walter Junqueira},
year = {2000},
publisher = {Astronomical Society Pacific},
booktitle   = {International Astronomical Union Symposium}
}