W. J. Maciel -
Abstract #79
PLANETARY NEBULAE: ABUNDANCES AND ABUNDANCE GRADIENTS
W. J. Maciel
The evolution of the Milky Way: stars versus clusters, F. Matteucci, F. Giovannelli (eds.), Kluwer, p. 81-92 (2000) In this work, a review is given of some recent results and problems involved in the determination of chemical abundances of galactic planetary nebulae, particularly regarding disk and bulge objects.
